47 CFR Part 101 — Fixed Microwave Services

PART 101—FIXED MICROWAVE SERVICES Authority: 47 U.S.C. 154, 303. Source: 61 FR 26677, May 28, 1996, unless otherwise noted. Subpart A—General § 101.1 [Reserved] § 101.3 Definitions. As used in this part: 24 GHz Service. Antenna power gain. Antenna power input. Antenna structure. Assigned frequency. Assigned frequency bandwidth. Authorized bandwidth. Authorized frequency. Authorized power. Automatic Transmitter Power Control (ATPC). Bandwidth occupied by an emission. Bit rate. Carrier. Carrier frequency. Central office. Common carrier fixed point-to-point microwave service. Communication common carrier. Contiguous United States. see Control point. Control station. Coordination area. Coordination contour. Coordination distance. Digital Electronic Message Nodal Station. Digital Electronic Message Service. Digital Electronic Message User Station. Digital modulation. Drop point. Earth station. (1) With one or more space stations; or (2) With one or more stations of the same kind by means of one or more reflecting satellites or other objects in space. Effective Radiated Power (ERP). Equivalent Isotropically Radiated Power (EIRP). Exchange. Exchange area. Fixed satellite earth station. Fixed relay station. Fixed service. Fixed station. Frequency tolerance. Note: The frequency tolerance is expressed as a percentage or in Hertzs. General communication. (1) A common carrier land mobile or airborne station and a landline telephone station connected to a public message landline telephone system; (2) Two common carrier land mobile stations; (3) Two common carrier airborne stations; (4) A common carrier land mobile station and a common carrier airborne station. Harmful interference. Internodal link. Landing area. Local Multipoint Distribution Service Backbone Link. Local Multipoint Distribution Service Hub Station. Local Multipoint Distribution Service Subscriber Station. Local Multipoint Distribution Service System. Local television transmission service. Long haul system. Master station. Message center. Microwave frequencies. Microwave link. Miscellaneous common carriers. Mobile earth station. Mobile service. Mobile station. Multichannel Video Distribution and Data Service (MVDDS). Multiple address system (MAS). National Spatial Reference System. Necessary bandwidth. Nodal station. Occupied bandwidth. Note: The percentage of the total power outside the occupied bandwidth is represented by B. Operational fixed station. Passive repeater. Path length. Payload capacity. Periscope antenna system. Prior coordination. Private carrier. Private line service. Private operational fixed point-to-point microwave service. Public correspondence. Public message service. Radio station. Radiocommunication. Rated power output. Record communication. Reference frequency. Relay station. Remote station. Repeater station. Secondary operations. Short haul system. Signal booster. Signaling communication. Standby transmitter. Symbol rate. Telegraphy. Telemetering. Telephony. Television. Temporary fixed station. Universal Licensing System (ULS). User or subscriber station. Video entertainment material. [61 FR 26677, May 28, 1996, as amended at 61 FR 29693, June 12, 1996; 61 FR 31052, June 19, 1996; 61 FR 44181, Aug. 28, 1996; 62 FR 23163, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 65 FR 17448, Apr. 3, 2000; 65 FR 38326, June 20, 2000; 65 FR 59357, Oct. 5, 2000; 67 FR 43037, June 26, 2002; 68 FR 4955, Jan. 31, 2003; 77 FR 54432, Sept. 5, 2012; 85 FR 22889, Apr. 23, 2020] Subpart B—Applications and Licenses General Filing Requirements § 101.4 Transition plan. (a) All systems subject to parts 21 and 94 of this chapter in effect as of July 31, 1996, which are licensed or which are proposed in an application on file, as of July 31, 1996, are subject to the requirements under part 21 or part 94 of this chapter as contained in the CFR edition revised as of October 1, 1995 and amended in the Federal Register (b) For purposes of this section, a “system” shall include: (1) The originally licensed system; (2) Any modification to the original system involving a change in antenna azimuth, antenna beam width, channel loading, emission, station location, antenna height, authorized power, or authorized frequencies; (3) Additional links constructed to complete an integrated communications network; or (4) Operationally connecting new facilities and/or frequencies. (c) All radio frequency devices authorized pursuant to part 2 of this chapter as being in compliance with applicable part 21 or part 94 of this chapter in effect as of July 31, 1996, requirements can be used indefinitely with systems licensed under this part 101. [61 FR 26677, May 28, 1996, as amended at 65 FR 38326, June 20, 2000] § 101.5 Station authorization required. (a) [Reserved] (b) A separate application form must be filed electronically via ULS for each Digital Electronic Message Service (DEMS) Nodal Station. No license is required for a DEMS User Station or for a Multiple Address System (MAS) remote or mobile station. Authority for a DEMS Nodal Station licensee to serve a specific number of user stations to be licensed in the name of the carrier must be requested on FCC Form 601 filed for the DEMS Nodal Station. Authority for any number of MAS remotes and authority to serve MAS mobiles (to the extent this part permits such operation) within a specified area will be included in the authority for the MAS fixed master stations. (c) [Reserved] (d) For stations authorized under subpart H (Private Operational Fixed Point-to-Point Microwave Service), subpart I (Common Carrier Fixed Point-to-Point Microwave Service), and subpart L of this part (Local Multipoint Distribution Service), construction of new or modified stations may be initiated prior to grant of an authorization. As a condition to commencing construction under this paragraph (d), the Commission may, at any time and without hearing or notice, prohibit such construction for any reason. Any construction conducted under this paragraph is at the applicant's sole risk. [61 FR 26677, May 28, 1996, as amended at 62 FR 23164, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 68 FR 4955, Jan. 31, 2003] § 101.7 Eligibility for station license. (a) A station license may not be granted to or held by a foreign government or by a representative of a foreign government. (b) In the Common Carrier service, a station license may not be granted or held by: (1) Any alien or the representative of any alien; (2) Any corporation organized under the laws of any foreign government; (3) Any corporation of which more than one-fifth of the capital stock is owned of record or voted by: Aliens or their representatives; a foreign government or representatives thereof; or any corporation organized under the laws of a foreign country; or (4) Any corporation directly or indirectly controlled by any other corporation of which more than one-fourth of the capital stock is owned of record or voted by aliens or their representatives, or by a foreign government or representative thereof, or by any corporation organized under the laws of a foreign government, if the Commission finds that the public interest will be served by the refusal or revocation of such license. [61 FR 26677, May 28, 1996, as amended at 61 FR 55581, Oct. 28, 1996] § 101.17 [Reserved] § 101.21 Technical content of applications. Applications, except FCC Form 175, must contain all technical information required by the application form and any additional information necessary to fully describe the proposed facilities and to demonstrate compliance with all technical requirements of the rules governing the radio service involved (see subparts C, F, G, I, J, and L of this part, as appropriate). The following paragraphs describe a number of technical requirements. (a)-(d) [Reserved] (e) Each application in the Private Operational Fixed Point-to-Point Microwave Service and the Common Carrier Fixed Point-to-Point Microwave Service must include the following information: Applicant's name and address. Transmitting station name. Transmitting station coordinates. Frequencies and polarizations to be added, changed or deleted. Transmitting equipment, its stability, effective isotropic radiated power, emission designator, and type of modulation (digital). Transmitting antenna(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer. Transmitting antenna center line height(s) above ground level and ground elevation above mean sea level. Receiving station name. Receiving station coordinates. Receiving antenna(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer. Receiving antenna center line height(s) above ground level and ground elevation above mean sea level. Path azimuth and distance. Note: The position location of antenna sites shall be determined to an accuracy of no less than ±1 second in the horizontal dimensions (latitude and longitude) and ±1 meter in the vertical dimension (ground elevation) with respect to the National Spacial Reference System. (f) All applicants for regular authorization must, before filing an application, major amendments to a pending application, or modifications to a license, prior coordinate the proposed frequency usage with existing users in the area and other applicants with previously filed applications in accordance with the procedures in § 101.103. In those frequency bands shared with the communication-satellite service, an applicant for a new station, for new points of communication, for the initial frequency assignment in a shared band for which coordination has not been previously effected, or for authority to modify the emission or radiation characteristics of an existing station in a manner that may increase the likelihood of harmful interference, must ascertain in advance whether the station(s) involved lie within the great circle coordination distance contours of an existing Earth station or one for which an application has been accepted for filing, and must coordinate his proposal with each such Earth station operator or applicant. For each potential interference path, the applicant must perform the computations required to determine that the expected level of interference to or from the terrestrial station does not exceed the maximum permissible interference power level in accordance with the technical standards and requirements of § 25.251 of this chapter. The Commission may, in the course of examining any application, require the submission of additional showings, complete with pertinent data and calculations in accordance with part 25 of this chapter, showing that harmful interference will not likely result from the proposed operation. (Technical characteristics of the Earth stations on file and coordination contour maps for those Earth stations will be kept on file for public inspection in the offices of the Commission's Space Bureau in Washington, DC.) (g) Each application in the Local Multipoint Distribution Service and 24 GHz Service must contain all technical information required by FCC Form 601 and any other applicable form or associated Public Notices and by any applicable rules in this part. [61 FR 26677, May 28, 1996, as amended at 62 FR 23164, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 65 FR 38327, June 20, 2000; 65 FR 59357, Oct. 5, 2000; 78 FR 25176, Apr. 29, 2013; 88 FR 21451, Apr. 10, 2023] § 101.23 [Reserved] § 101.31 Temporary and conditional authorizations. (a) Operation at temporary locations. (i) When a fixed station, authorized to operate at temporary locations, is to remain at a single location for more than 6 months, an application for a station authorization designating that single location as the permanent location shall be filed at least 90 days prior to the expiration of the 6 month period; (ii) The station shall be used only for rendition of communication service at a remote point where the provision of wire facilities is not practicable within the required time frame; and (iii) The antenna structure height employed at any location shall not exceed the criteria set forth in § 17.7 of this chapter unless, in each instance, authorization for use of a specific maximum antenna structure height for each location has been obtained from the Commission prior to erection of the antenna. See § 101.125. (2) Applications for authorizations to operate stations at temporary locations under the provisions of this section shall be made upon FCC Form 601. Blanket applications may be submitted for the required number of transmitters. An application for authority to operate a fixed station at temporary locations must specify the precise geographic area within which the operation will be confined. The area specified must be defined as a radius of operation about a specific coordinate (latitude/longitude), or as a county, or as a State. Exception to this specific requirement may be made for exceptionally large areas, such as the continental United States. Sufficient data must be submitted to show the need for the proposed area of operation. (3) Operations in the 17.8-19.7 GHz band for any services and in the 17.7-17.8 GHz band for MVPD operations are prohibited in the areas defined in § 1.924 of this chapter. Operations proposed in the areas defined in § 1.924 of this chapter may not commence without prior specific notification to, and authorization from, the Commission. (b) Conditional authorization. (i) The frequency coordination procedures of § 101.103 have been successfully completed; (ii) The antenna structure(s) has been previously studied by the Federal Aviation Administration and determined to pose no hazard to aviation safety as required by subpart B of part 17 of this chapter; or the antenna or tower structure does not exceed 6.1 meters above ground level or above an existing man-made structure (other than an antenna structure), if the antenna or tower has not been previously studied by the Federal Aviation Administration and cleared by the FCC; (iii) The grant of the application(s) does not require a waiver of the Commission's rules: (iv) The applicant has determined that the facility(ies) will not significantly affect the environment as defined in § 1.1307 of this chapter; (v) The station site does not lie within 56.3 kilometers of any international border, within areas identified in §§ 1.924(a) through (d) of this chapter unless the affected entity consents in writing to conditional operation or, if for any services on frequencies in the 17.8-19.7 GHz band and for MVPD operations in the 17.7-17.8 GHz band, within any of the areas identified in § 1.924 of this chapter; (vi) If operated on frequencies in the 10.6-10.68 GHz band, the station site does not lie within any of the following regions: Name of region Dimensions = radius in kilometers Center-point Kitt Peak, Arizona 60 N31-57-22; W111-36-42 Big Pine, California 60 N37-13-54; W118-16-34 Vandenburg AFB, California 75 N34-43-00; W120-34-00 Denver, Colorado 150 N39-43-00; W104-46-00 Washington, DC 150 N38-48-00; W76-52-00 Eglin AFB, Florida 50 N30-29-00; W86-32-00 Mauna Kea, Hawaii 60 N19-48-16; W155-27-29 North Liberty, Iowa 60 N41-46-17; W91-34-26 Maryland Point, Maryland 60 N38-22-26; W77-14-00 Hancock, New Hampshire 60 N42-56-01; W71-59-12 Los Alamos, New Mexico 60 N35-46-30; W106-14-42 Pie Town, New Mexico 60 N34-18-04; W108-07-07 Socorro, New Mexico 160 N34-04-43; W107-37-04 WSMR, New Mexico 75 N32-23-00; W106-29-00 Minot AFB, North Dakota 80 N48-15-00; W101-17-00 Arecibo, Puerto Rico 160 N18-20-37; W66-45-11 Fort Davis, Texas 60 N30-38-06; W103-56-39 St. Croix, Virgin Islands 60 N17-45-31; W64-35-03 Brewster, Washington 60 N48-07-53; W119-40-55 Green Bank, West Virginia 160 N38-25-59; W79-50-24 Note: Coordinates are referenced to North American Datum 1983 (NAD83). (vii) With respect to the 21.8-22.1 GHz and 23.0-23.3 GHz band, the filed application(s) does not propose to operate on a frequency pair centered on other than 21.825/23.025 GHz, 21.875/23.075 GHz, 21.925/23.125 GHz, 21.975/23.175 GHz, 22.025/23.225 GHz or 22.075/23.275 GHz and does not propose to operate with an E.I.R.P. greater than 55 dBm. The center frequencies are shifted from the center frequencies listed above for certain bandwidths as follows: add 0.005 GHz for 20 MHz bandwidth channels, add 0.010 GHz for 30 megahertz bandwidth channels, and subtract 0.005 GHz for 40 MHz bandwidth channels. See (viii) The filed application(s) is consistent with the proposal that was coordinated pursuant to § 101.103. (2) Conditional authority ceases immediately if the application(s) is returned by the Commission because it is not acceptable for filing. (3) Conditional authorization does not prejudice any action the Commission may take on the subject application(s). Conditional authority is accepted with the express understanding that such authority may be modified or cancelled by the Commission at any time without hearing if, in the Commission's discretion, the need for such action arises. An applicant operating pursuant to this conditional authority assumes all risks associated with such operation, the termination or modification of the conditional authority, or the subsequent dismissal or denial of its applications(s). [61 FR 26677, May 28, 1996, as amended at 62 FR 55538, Oct. 27, 1997; 63 FR 10779, Mar. 5, 1998; 63 FR 68981, Dec. 14, 1998; 65 FR 38327, June 20, 2000; 68 FR 4955, Jan. 31, 2003; 69 FR 17959, Apr. 6, 2004; 71 FR 69048, Nov. 29, 2006; 75 FR 41771, July 19, 2010; 76 FR 59571, Sept. 27, 2011; 80 FR 38912, July 7, 2015] Processing of Applications §§ 101.45-101.51 [Reserved] License Transfers, Modifications, Conditions and Forfeitures § 101.55 Considerations involving transfer or assignment applications. (a) Except as provided for in paragraph (d) of this section, licenses not authorized pursuant to competitive bidding procedures may not be assigned or transferred prior to the completion of construction of the facility. (b) [Reserved] (c) At its discretion, the Commission may require the submission of an affirmative, factual showing (supported by affidavits of a person or persons with personal knowledge thereof) to demonstrate that the proposed assignor or transferor has not acquired an authorization or operated a station for the principal purpose of profitable sale rather than public service. This showing may include, for example, a demonstration that the proposed assignment or transfer is due to changed circumstances (described in detail) affecting the licensee subsequent to the acquisition of the license, or that the proposed transfer of radio facilities is incidental to a sale of other facilities or merger of interests. (d) If a proposed transfer of radio facilities is incidental to a sale or other facilities or merger of interests, the showing specified under paragraph (c) of this section shall be submitted and include an additional exhibit that: (1) Discloses complete details as to the sale of facilities or merger of interests; (2) Segregates clearly by an itemized accounting, the amount of consideration involved in the sale of facilities or merger of interests; and (3) Demonstrates that the amount of consideration assignable to the facilities or business interests involved represents their fair market value at the time of the transaction. [61 FR 26677, May 28, 1996, as amended at 63 FR 6104, Feb. 6, 1998; 63 FR 68982, Dec. 14, 1998; 65 FR 38327, June 20, 2000; 68 FR 4955, Jan. 31, 2003] § 101.56 [Reserved] § 101.61 Certain modifications not requiring prior authorization in the Local Multipoint Distribution Service and 24 GHz Service In the Local Multipoint Distribution Service (LMDS) licensees may add, remove, or relocate facilities within the area authorized by the license without prior authorization. Upon request by an incumbent licensee or the Commission, an LMDS licensee shall furnish the technical parameters, location and coordinates of the completion of the addition, removal, relocation or modification of any of its facilities within the BTA. The LMDS licensee must provide such information within ten (10) days of receiving a written request. This section also applies to 24 GHz licensees that are licensed according to Economic Areas. [65 FR 59357, Oct. 5, 2000] § 101.63 Period of construction; certification of completion of construction. Link to an amendment published at 89 FR 33258, Apr. 29, 2024. (a) Each Station, except in Multichannel Video Distribution and Data Service, Local Multipoint Distribution Service, and the 24 GHz Service, authorized under this part must be in operation within 18 months from the initial date of grant. (b) For the 70 GHz, 80 GHz, and 90 GHz bands, the 12-month construction period will commence on the date of each registration of each individual link; adding links will not change the overall renewal period of the license. (c) Failure to timely begin operation means the authorization cancels automatically. (d) The frequencies associated with all point-to-multipoint authorizations which have cancelled automatically or otherwise been recovered by the Commission will again be made available for reassignment on a date and under terms set forth by Public Notice. See § 101.1331(d) for treatment of MAS incumbent site-by-site licenses recovered in EAs. (e)-(f) [Reserved] (g) MVPD licensees which have both analog and digital emissions designators specified on the license and which already have, or may transition from analog to digital operations, or a combination of both, meet their completion of construction requirements and do not automatically surrender their license provided they are using either set of emissions. If the licensee has completed the transition to digital, the license can remove the unused analog emission designators the next time a modification or renewal application is filed. [61 FR 26677, May 28, 1996, as amended at 62 FR 23165, Apr. 29, 1997; 63 FR 6104, Feb. 6, 1998; 63 FR 68982, Dec. 14, 1998; 64 FR 45893, Aug. 23, 1999; 65 FR 17448, Apr. 3, 2000; 65 FR 38327, June 20, 2000; 65 FR 59357, Oct. 5, 2000; 69 FR 3266, Jan. 23, 2004; 69 FR 16832, Mar. 31, 2004; 71 FR 69048, Nov. 29, 2006; 81 FR 79944, Nov. 14, 2016; 90 FR 57712, Dec. 12, 2025] § 101.64 [Reserved] § 101.65 Termination of station authorizations. In addition to the provisions of § 1.953 of this chapter, a site-based license will be automatically terminated in whole or in part without further notice to the licensee upon the voluntary removal or alteration of the facilities, so as to render the station not operational for a period of 30 days or more. A licensee is subject to this provision commencing on the date it is required to be providing service or operating under § 101.63. This provision is inapplicable to blanket authorizations to operate fixed stations at temporary locations pursuant to the provisions of § 101.31(a)(2). See § 101.305 for additional rules regarding temporary and permanent discontinuation of service. [82 FR 41549, Sept. 1, 2017] Effective Date Note: At 82 FR 41549, Sept. 1, 2017, § 101.65 was revised. This section contains information collection and recordkeeping requirements and will not become effective until approval has been given by the Office of Management and Budget. § 101.67 License period. Licenses for stations authorized under this part will be issued for a period not to exceed 10 years. Unless otherwise specified by the Commission, the expiration of regular licenses shall be on the date (month and day) selected by licensees in the year of expiration. §§ 101.69-101.82 [Reserved] Policies Governing Fixed Service Relocation From the 18.58-19.30 GHz Band Source: 65 FR 54173, Sept. 7, 2000, unless otherwise noted. §§ 101.83-101.91 [Reserved] § 101.95 Provisions for grandfathered licensees in the 18.30-19.30 GHz band. (a) FSS licensees may require the incumbent to cease operations, provided that the FSS licensee turns on a system within interference range of the incumbent, as determined by TIA Bulletin 10-F or any standard successor. FSS licensee notification to the affected FS licensee must be in writing and must provide the incumbent with no less than six months to vacate the spectrum. After the six-month notice period has expired, the FS licensee must relinquish its license to the Commission, unless it has entered into an agreement with the affected FSS licensee that allows it to continue to operate on a mutually agreed upon basis. (b) If the parties cannot agree on a schedule or an alternative arrangement, requests for extension will be accepted and reviewed on a case-by-case basis. The Commission will grant such extensions only if the incumbent can demonstrate that: (1) It cannot relocate within the six-month period (e.g., because no alternative spectrum or other reasonable option is available); and (2) The public interest would be harmed if the incumbent is forced to terminate operations (e.g., if public safety communications services would be disrupted). [65 FR 54173, Sept. 7, 2000, as amended at 91 FR 1431, Jan. 14, 2026] § 101.97 [Reserved] Subpart C—Technical Standards § 101.101 Frequency availability. Frequency Radio service Common Private Broadcast Other Notes 928-929 MAS MAS PRS 932.0-932.5 MAS MAS PRS 932.5-935.0 CC OFS (1). 941.0-941.5 MAS MAS PRS 941.5-944.0 CC OFS Aural BAS (1). 952-958 OFS/MAS PRS 958-960 MAS OFS 1850-1990 OFS PCS 2110-2130 CC PET 2130-2150 OFS PET 2160-2180 CC ET 2180-2200 OFS PET 2450-2500 CC OFS TV BAS ISM F/M/TF 2650-2690 OFS MDS/ITFS 3700-4200 CC LTTS OFS SAT, ET (2). 5925-6425 CC LTTS OFS SAT 6425-6525 LTTS OFS TV BAS CARS M. 6525-6875 CC OFS 6875-7125 CC OFS TV BAS CARS 10,550-10,680 CC OFS DEMS 10,700-11,700 CC OFS SAT 12,200-12,700 MVDDS MVDDS, POFS DBS, NGSO FSS 12,700-13,250 CC LTTS OFS TV BAS CARS F/M/TF. 17,700-18,580 CC OFS TV BAS SAT CARS 17,700-18,300 CC OFS TV BAS CARS 18,300-18,580 CC OFS TV BAS CARS SAT 18,580-18,820 CC OFS Aural BAS SAT 18,820-18,920 CC OFS SAT 18,920-19,160 CC OFS Aural BAS SAT 19,160-19,260 CC OFS SAT 19,260-19,700 CC OFS TV BAS CARS SAT 21,200-23,600 CC LTTS OFS TF. 24,250-25,250 CC OFS 29,100-29,250 LMDS LMDS SAT 31,000-31,300 CC LMDS LTTS OFS LMDS F/M/TF. 71,000-76,000 CC OFS 25 F/M/TF 81,000-86,000 CC OFS 25 F/M/TF 92,000-95,000 CC OFS 15 F/M/TF. BAS: Broadcast Auxiliary Service—(Part 74) CARS: Cable Television Relay Service—(Part 78) CC: Common Carrier Fixed Point-to-Point Microwave Service—(Part 101, Subparts C & I) DBS: Direct Broadcast Satellite—(Part 100) DEMS: Digital Electronic Message Service—(Part 101, Subpart G) ISM: Industrial, Scientific & Medical—(Part 18) ITFS: Instructional Television Fixed Service—(Part 74) LTTS: Local Television Transmission Service—(Part 101, Subpart J) MAS: Multiple Address System—(Part 101) MDS: Multipoint Distribution Service—(Part 21) OFS: Private Operational Fixed Point-to-Point Microwave Service—(Part 101, Subparts C & H) PCS: Personal Communications Service—(Part 24) PET: Emerging Technologies (per ET Dkt. No. 92-9, not yet assigned) PRS: Paging and Radiotelephone Service—(Part 22, Subpart E) SAT: Fixed Satellite Service—(Part 25) Notes: F—Fixed M—Mobile TF—Temporary Fixed (1)—Applications for frequencies in the 932.5-935/941.5-944 MHz bands may be filed initially during a one-week period to be announced by public notice. After these applications have been processed, the Commission will announce by public notice a filing date for remaining frequencies. From this filing date forward, applications will be processed on a daily first-come, first-served basis. (2) Frequencies in this band are shared with stations in the fixed satellite service outside the contiguous United States. Applications for new permanent or temporary facilities in these bands will not be accepted for locations in the contiguous United States. Licensees, as of April 19, 2018, of existing permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band. Such licensees may seek reimbursement of their reasonable costs based on the “comparable facilities” standard used for the transition of microwave links out of other bands, see [61 FR 26677, May 28, 1996, as amended at 62 FR 23165, Apr. 29, 1997; 62 FR 24582, May 6, 1997; 65 FR 38327, June 20, 2000; 65 FR 54175, Sept. 7, 2000; 65 FR 59357, Oct. 5, 2000; 67 FR 43037, June 28, 2002; 69 FR 3266, Jan. 23, 2004; 69 FR 72047, Dec. 10, 2004; 70 FR 4787, Jan. 31, 2005; 76 FR 59571, Sept. 27, 2011; 81 FR 79944, Nov. 14, 2016; 85 FR 22889, Apr. 23, 2020] § 101.103 Frequency coordination procedures. (a) Assignment of frequencies will be made only in such a manner as to facilitate the rendition of communication service on an interference-free basis in each service area. Unless otherwise indicated, each frequency available for use by stations in these services will be assigned exclusively to a single applicant in any service area. All applicants for, and licensees of, stations in these services must cooperate in the selection and use of the frequencies assigned in order to minimize interference and thereby obtain the most effective use of the authorized facilities. In the event harmful interference occurs or appears likely to occur between two or more radio systems and such interference cannot be resolved between the licensees thereof, the Commission may specify a time sharing arrangement for the stations involved or may, after notice and opportunity for hearing, require the licensees to make such changes in operating techniques or equipment as it may deem necessary to avoid such interference. (b)(1) Operations in the bands 31,000-31,075 MHz and 31,225-31,300 MHz licensed prior to March 11, 1997, were licensed on an unprotected basis and are subject to harmful interference from similarly licensed operations in that band. (i) Operations licensed in the Local Mulitpoint Distribution Service and those operations licensed prior to March 11, 1997, except in the Local Television Transmission Service, operating in these bands are equally protected against harmful interference from each other. (ii) In the case of operations licensed prior to March 11, 1997, except in the Local Television Transmission Service, that are licensed on a point-to-radius basis, LMDS licensees shall be subject to the protection requirement established in this section in the case of existing links operated by such licensees, and in the case of links added by such licensees in the future in accordance with the terms of their point-to-radius licenses. (iii) An LMDS licensee may not initiate operations within the point-to-radius area licensed to an operator (other than an operator in the Local Television Transmission Service) prior to March 11, 1997, even if such operator has not initiated operations to the fullest extent of the license. An LMDS licensee, however, may initiate operations at the border of such operator's license area without prior coordination if the LMDS licensee's operations would not cause harmful interference to the other operator's existing operations. (iv) An operator (other than an operator in the Local Television Transmission Service) licensed on a point-to-radius basis prior to March 11, 1997, may add additional stations within its license area. Such operator shall coordinate with any affected LMDS licensee if its new operations might cause harmful interference to the existing operations of such LMDS licensee. (v) Operations licensed prior to March 11, 1997, on a point-to-point basis may not be extended or otherwise modified through the addition of point-to-point links. Such operations shall be limited to the use of frequency pairs licensed as of March 11, 1997. Operations licensed in the Local Television Transmission Service as of March 11, 1997, may continue to operate, but such operators may not expand existing operations nor initiate new operations. (2) Operations in the 31,075-31,225 MHz band licensed prior to March 11, 1997, shall receive no protection against harmful interference from authorized operations in the Local Multipoint Distribution Service in that band. (3) Non-LMDS operations in the entire 31,000-31,300 MHz band licensed after March 11, 1997, based on applications refiled no later than June 26, 1998 are unprotected with respect to each other and subject to harmful interference from each other. (i) Such operations and any operations licensed prior to March 11, 1997, in the band are unprotected with respect to each other and subject to harmful interference from each other. (ii) Such operations are licensed on a secondary basis to LMDS operations licensed in the band, may not cause interference to LMDS operations, and are not protected from interference from LMDS operations. (iii) Such operations licensed on a point-to-point basis may not be extended or otherwise modified through the addition of point-to-point links. Such operations licensed on a point-to-radius basis may add additional stations within the licensed area. (c) Frequency diversity transmission will not be authorized in these services in the absence of a factual showing that the required communications cannot practically be achieved by other means. Where frequency diversity is deemed to be justified on a protection channel basis, it will be limited to one protection channel for the bands 3,700-4,200, 5925-6425, and 6525-6875 MHz, and a ratio of one protection channel for three working channels for the bands 10,550-10,680 and 10,700-11,700 MHz. In the bands 3,700-4,200, 5,925-6,425, and 6525-6875 MHz, no frequency diversity protection channel will be authorized unless there is a minimum of three working channels, except that where a substantial showing is made that a total of three working channels will be required within three years, a protection channel may be authorized simultaneously with the first working channel. A protection channel authorized under such exception will be subject to termination if applications for the third working channel are not filed within three years of the grant date of the applications for the first working channel. Where equipment employing digital modulation techniques with cross-polarized operation on the same frequency is used, the protection channel authorized under the above conditions may be considered to consist of both polarizations of the protection frequency where such is shown to be necessary. (d) Frequency coordination. (1) General requirements. (2) Coordination procedure guidelines are as follows: (i) Coordination involves two separate elements: notification and response. Both or either may be oral or in written form. To be acceptable for filing, all applications and major technical amendments must certify that coordination, including response, has been completed. The names of the licensees, permittees and applicants with which coordination was accomplished must be specified. If such notice and/or response is oral, the party providing such notice or response must supply written documentation of the communication upon request; (ii) Notification must include relevant technical details of the proposal. At minimum, this should include, as applicable, the following: Applicant's name and address. Transmitting station name. Transmitting station coordinates. Frequencies and polarizations to be added, changed or deleted. Transmitting equipment type, its stability, actual output power, emission designator, and type of modulation(s) (loading). Notification shall indicate if modulations lower than the values listed in the table to § 101.141(a)(3) of the Commission's rules will be used. Transmitting antenna type(s), model, gain and, if required, a radiation pattern provided or certified by the manufacturer. Transmitting antenna center line height(s) above ground level and ground elevation above mean sea level. Receiving station name. Receiving station coordinates. Receiving antenna type(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer. Receiving antenna center line height(s) above ground level and ground elevation above mean sea level. Path azimuth and distance. Estimated transmitter transmission line loss expressed in dB. Estimated receiver transmission line loss expressed in dB. For a system utilizing ATPC, maximum transmit power, coordinated transmit power, and nominal transmit power. Note: The position location of antenna sites shall be determined to an accuracy of no less than ±1 second in the horizontal dimensions (latitude and longitude) and ±1 meter in the vertical dimension (ground elevation) with respect to the National Spatial Reference System. (iii) For transmitters employing digital modulation techniques, the notification should clearly identify the type of modulation. Upon request, additional details of the operating characteristics of the equipment must also be furnished; (iv) Response to notification should be made as quickly as possible, even if no technical problems are anticipated. Any response to notification indicating potential interference must specify the technical details and must be provided to the applicant, in writing, within the 30-day notification period. Every reasonable effort should be made by all applicants, permittees and licensees to eliminate all problems and conflicts. If no response to notification is received within 30 days, the applicant will be deemed to have made reasonable efforts to coordinate and may file its application without a response; (v) The 30-day notification period is calculated from the date of receipt by the applicant, permittee, or licensee being notified. If notification is by mail, this date may be ascertained by: (A) The return receipt on certified mail; (B) The enclosure of a card to be dated and returned by the recipient; or (C) A conservative estimate of the time required for the mail to reach its destination. In the last case, the estimated date when the 30-day period would expire should be stated in the notification. (vi) An expedited prior coordination period (less than 30 days) may be requested when deemed necessary by a notifying party. The coordination notice should be identified as “expedited” and the requested response date should be clearly indicated. However, circumstances preventing a timely response from the receiving party should be accommodated accordingly. It is the responsibility of the notifying party to receive written concurrence (or verbal, with written to follow) from affected parties or their coordination representatives. (vii) All technical problems that come to light during coordination must be resolved unless a statement is included with the application to the effect that the applicant is unable or unwilling to resolve the conflict and briefly the reason therefor; (viii) Where a number of technical changes become necessary for a system during the course of coordination, an attempt should be made to minimize the number of separate notifications for these changes. Where the changes are incorporated into a completely revised notice, the items that were changed from the previous notice should be identified. When changes are not numerous or complex, the party receiving the changed notification should make an effort to respond in less than 30 days. When the notifying party believes a shorter response time is reasonable and appropriate, it may be helpful for that party to so indicate in the notice and perhaps suggest a response date; (ix) If, after coordination is successfully completed, it is determined that a subsequent change could have no impact on some parties receiving the original notification, these parties must be notified of the change and of the coordinator's opinion that no response is required; (x) Applicants, permittees and licensees should supply to all other applicants, permittees and licensees within their areas of operations, the name, address and telephone number of their coordination representatives. Upon request from coordinating applicants, permittees and licensees, data and information concerning existing or proposed facilities and future growth plans in the area of interest should be furnished unless such request is unreasonable or would impose a significant burden in compilation; (xi) Parties should keep other parties with whom they are coordinating advised of changes in plans for facilities previously coordinated. If applications have not been filed 6 months after coordination was initiated, parties may assume that such frequency use is no longer desired unless a second notification has been received within 10 days of the end of the 6 month period. Renewal notifications are to be sent to all originally notified parties, even if coordination has not been successfully completed with those parties; and (xii) Any frequency reserved by a licensee for future use in the bands subject to this part must be released for use by another licensee, permittee or applicant upon a showing by the latter that it requires an additional frequency and cannot coordinate one that is not reserved for future use. (e) Where frequency conflicts arise between co-pending applications in the Private Operational Fixed Point-to-Point Microwave, Common Carrier Fixed Point-to-Point Microwave and Local Television Transmission Services, it is the obligation of the later filing applicant to amend his application to remove the conflict, unless it can make a showing that the conflict cannot be reasonably eliminated. Where a frequency conflict is not resolved and no showing is submitted as to why the conflict cannot be resolved, the Commission may grant the first filed application and dismiss the later filed application(s) after giving the later filing applicant(s) 30 days to respond to the proposed action. (f)(1) Coordination and information sharing between MVDDS and NGSO FSS licensees in the 12.2 GHz to 12.7 GHz band. (i) Name of MVDDS licensee; (ii) Geographic location (including NAD83 coordinates) of proposed MVDDS transmitting antenna; (iii) Maximum EIRP per 24 MHz; (iv) Height above average terrain of the transmitting antenna; (v) Type of antenna to be utilized; (vi) Main beam azimuth and altitude orientation for the proposed transmitting antenna; (vii) Theoretically modeled antenna radiation pattern; (viii) Type(s) of emissions, and; (ix) Description of the proposed service area. (2) If the proposed MVDDS antenna site does not meet the minimum spacing requirements on the date of original notification or on subsequent annual anniversary dates of non-operation as set forth in § 101.129, then the MVDDS licensee shall not construct the proposed transmission facility unless all NGSO FSS licensees having active subscribers within the minimum separation distance agree to a shorter spacing. Nothing in this section shall preclude MVDDS and NGSO FSS licensees from agreeing to accept the siting of new MVDDS transmitting antennas that do no meet the minimum distance set forth in § 101.129. Incumbent point-to-point licensees' (those not licensed as MVDDS) facilities are to be operated in the band 12,200-12,700 MHz following the procedures, technical standards, and requirements of § 101.105 in order to protect stations providing Direct Broadcast Satellite Service. (g) Licensees operating in Basic Trading Areas authorized in the Local Multipoint Distribution Service. (2) Response to notification should be made as quickly as possible, even if no technical problems are anticipated. Any response to notification indicating potential interference must specify the technical details and must be provided to the applicant, either electronically or in writing, within the 30-day notification period. Every reasonable effort should be made by all licensees to eliminate all problems and conflicts. If no response to notification is received within 30 days, the licensee will be deemed to have made reasonable efforts to coordinate and commence operation without a response. The beginning of the 30-day period is determined pursuant to paragraph (d)(2)(v) of this section. (h) Special requirements for operations in the band 29,100-29,250 MHz. (ii) LMDS licensees operating on frequencies in the 29,100-29,250 MHz band outside a feeder link earth station complex protection zone shall cooperate fully and make reasonable efforts to resolve technical problems with the non-GSO MSS licensee to the extent that transmissions from the non-GSO MSS operator's feeder link earth station complex interfere with an LMDS receive station. (2) No more than 15 days after the release of a public notice announcing the commencement of LMDS auctions, feeder link earth station complexes to be licensed pursuant to § 25.257 of this chapter shall be specified by a set of geographic coordinates in accordance with the following requirements: no feeder link earth station complex may be located in the top eight (8) metropolitan statistical areas (MSAs), ranked by population, as defined by the Office of Management and Budget as of June 1993, using estimated populations as of December 1992; two (2) complexes may be located in MSAs 9 through 25, one of which must be Phoenix, AZ (for a complex at Chandler, AZ); two (2) complexes may be located in MSAs 26 to 50; three (3) complexes may be located in MSAs 51 to 100, one of which must be Honolulu, Hawaii (for a complex at Waimea); and the three (3) remaining complexes must be located at least 75 nautical miles from the borders of the 100 largest MSAs or in any MSA not included in the 100 largest MSAs. Any location allotted for one range of MSAs may be taken from an MSA below that range. (3)(i) Any non-GSO MSS licensee may at any time specify sets of geographic coordinates for feeder link earth station complexes with each earth station contained therein to be located at least 75 nautical miles from the border of the 100 largest MSAs. (ii) For purposes of paragraph (h)(3)(i) of this section, non-GSO MSS feeder link earth station complexes shall be entitled to accommodation only if the affected non-GSO MSS licensee preapplies to the Commission for a feeder link earth station complex or certifies to the Commission within sixty days of receiving a copy of an LMDS application that it intends to file an application for a feeder link earth station complex within six months of the date of receipt of the LMDS application. (iii) If said non-GSO MSS licensee application is filed later than six months after certification of the Commission, the LMDS and non-GSO MSS entities shall still cooperate fully and make reasonable efforts to resolve technical problems, but the LMDS licensee shall not be obligated to re-engineer its proposal or make changes to its system. (4) LMDS licensees or applicants proposing to operate hub stations on frequencies in the 29,100-29,250 MHz band at locations outside of the 100 largest MSAs or within a distance of 150 nautical miles from a set of geographic coordinates specified under paragraphs (h)(2) or (h)(3)(i) of this section shall serve copies of their applications on all non-GSO MSS applicants, permittees or licensees meeting the criteria specified in § 25.257(a). Non-GSO MSS licensees or applicants shall serve copies of their feeder link earth station applications, after the LMDS auction, on any LMDS applicant or licensee within a distance of 150 nautical miles from the geographic coordinates that it specified under § 101.113(c)(2) or (c)(3)(i). Any necessary coordination shall commence upon notification by the party receiving an application to the party who filed the application. The results of any such coordination shall be reported to the Commission within sixty days. The non-GSO MSS earth station licensee shall also provide all such LMDS licensees with a copy of its channel plan. [61 FR 26677, May 28, 1996, as amended at 62 FR 23165, Apr. 29, 1997; 63 FR 6105, Feb. 6, 1998; 63 FR 9448, Feb. 25, 1998; 63 FR 14039, Mar. 24, 1998; 63 FR 68983, Dec. 14, 1998; 64 FR 45893, Aug. 23, 1999; 65 FR 38328, June 20, 2000; 67 FR 43037, June 26, 2002; 76 FR 59571, Sept. 27, 2011; 81 FR 79944, Nov. 14, 2016] § 101.105 Interference protection criteria. (a) The interference protection criteria for fixed stations subject to this part are as follows: (1) To long-haul analog systems, employing frequency modulated radio and frequency division multiplexing to provide multiple voice channels, the allowable interference level per exposure: (i) Due to co-channel sideband-to-sideband interference must not exceed 5 pwpO (Picowatts of absolute noise power psophometrically weighted (pwpO), appearing in an equivalent voice band channel of 300-3400 Hz); or (ii) Due to co-channel carrier-beat interference must not exceed 50 pwpO. (2) To short-haul analog systems employing frequency modulated radio and frequency division multiplexing to provide multiple voice channels, the allowable interference level per exposure: (i) Due to co-channel sideband-to-sideband interference must not exceed 25 pwpO except in the 952-960 MHz band interference into single link fixed relay and control stations must not exceed 250 pwpO per exposure; or (ii) Due to co-channel carrier-beat interference must not exceed 50 pwpO except in the 952-960 MHz band interference into single link fixed relay and control stations must not exceed 1000 pwpO per exposure. (3) FM-TV. In analog systems employing frequency modulated radio that is modulated by a standard, television (visual) signal, the allowable interference level per exposure may not exceed the levels which would apply to long-haul or short-haul FM-FDM systems, as outlined in paragraphs (b) (1) and (2) of this section, having a 600-1200 voice channel capacity. (4) 12.2-12.7 GHz band. (i) To accommodate co-primary NGSO FSS earth stations in the 12.2-12.7 GHz band, the PFD of an MVDDS transmitting system must not exceed −135 dBW/m 2 (ii) To accommodate co-primary Direct Broadcast Satellite Service earth stations, an MVDDS transmitting system must not exceed the EPFD levels specified in paragraph (a)(4)(ii)(B) of this section at any DBS subscriber location in accordance with the procedures listed in § 101.1440 of this part. (A) Definition of equivalent power flux density: The equivalent power flux density (EPFD) is the power flux density produced at a direct broadcast service (DBS) receive earth station, taking into account shielding effects and the off-axis discrimination of the receiving antenna assumed to be pointing at the appropriate DBS satellite(s) from the transmitting antenna of a multichannel video distribution and data service (MVDDS) transmit station. The EPFD in dBW/m 2 Where: P out Gm ( θ m φ m G e θ e φ e I = Interference scaling factor for the earth station (1 dB for MVDDS transmitters employing the modulation discussed in Section 3.1.5 of the MITRE Report ( i.e., http://www.fcc.gov/oet/info/mitrereport/mitrereport_4_01.pdf G e, max d = the distance between the MVDDS transmitting antenna and the DBS earth station (meters) (B) Regional equivalent power flux density levels: ( 1 2 ( 2 2 ( 3 2 ( 4 2 (iii) Except for public safety entities, harmful interference protection from MVDDS stations to incumbent point-to-point 12 GHz fixed stations is not required. Incumbent point-to-point private operational fixed 12 GHz stations, except for public safety entities, are required to protect MVDDS stations under the process described in § 101.103(d) of this part. (5) 71,000-76,000 MHz; 81,000-86,000 MHz. (i) For receivers employing digital modulation: based upon manufacturer data and following TSB 10-F or other generally acceptable good engineering practice, for each potential case of interference a threshold-to-interference ratio (T/I) shall be determined that would cause 1.0 dB of degradation to the static threshold of the protected receiver. For the range of carrier power levels (C) between the clear-air (unfaded) value and the fully-faded static threshold value, in no case shall interference cause C/I to be less than the T/I so determined unless it can be shown that the availability of the affected receiver would still be acceptable despite the interference. (ii) For receivers employing analog modulation: manufacturer data or industry criteria will specify a baseband signal-to-noise requirement (S/N) of the receiver that will result in acceptable signal quality for continuous operation. Following TSB 10-F or other generally acceptable good engineering practice, for each potential case of interference a C/I objective shall be calculated to ensure that this S/N will not be degraded by more than 1.0 dB. For the range of carrier power levels (C) between the clear-air (unfaded) value and the fully-faded threshold value, in no case shall interference cause the C/I to be less than the objective so determined unless it can be shown that the signal quality and availability of the affected receiver would still be acceptable despite the interference. (6) 92,000-94,000 MHz; 94,100-95,000 MHz. (7) All stations operating under this part must protect the radio quiet zones as required by § 1.924 of this chapter. Stations authorized by competitive bidding are cautioned that they must receive the appropriate approvals directly from the relevant quiet zone entity prior to operating. (b) In addition to the requirements of paragraph (a) of this section the adjacent channel interference protection criteria to be afforded, regardless of system length, or type of modulation, multiplexing, or frequency band, must be such that the interfering signal does not produce more than 1.0 dB degradation of the practical threshold of the protected receiver. The “practical threshold” of the protected receiver can be based upon the definition in TSB 10, referenced in paragraph (c) of this section, or upon alternative generally acceptable good engineering standards. (c) Applying the criteria. (2) If TSB 10 guidelines cannot be used, the following interference protection criteria may be used by calculating the ratio in dB between the desired (carrier signal) and the undesired (interfering) signal (C/I ratio) appearing at the input to the receiver under investigation (victim receiver). Except as provided in § 101.147 where the applicant's proposed facilities are of a type not included in paragraphs (a) and (b) of this section or where the development of the carrier-to-interference (C/I) ratio is not covered by generally acceptable procedures, or where the applicant does not wish to develop the carrier-to-interference ratio, the applicant must, in the absence of criteria or a developed C/I ratio, employ the following C/I protection ratios: (i) Co-Channel Interference. (ii) Adjacent Channel Interference. (3) Applicants for frequencies listed in § 101.147(b)(1) through (4) must make the following showings that protection criteria have been met over the entire service area of existing systems. Such showings may be made by the applicant or may be satisfied by a statement from a frequency coordinator. (i) For site-based multiple address stations in the 928-929/952-960 MHz and the 932-932.5/941-941.5 MHz bands, a statement that the proposed system complies with the following co-channel separations from all existing stations and pending applications: Fixed-to-fixed—145 km; Fixed-to-mobile—113 km; Mobile-to-mobile—81 km Note to paragraph ( c i Multiple address systems employing only remote stations will be treated as mobile for the purposes of determining the appropriate separation. For mobile operation, the mileage is measured from the reference point specified on the license application. For fixed operation on subfrequencies in accordance with § 101.147 the mileage also is measured from the reference point specified on the license application. (ii) In cases where the geographic separation standard in paragraph (c)(3)(i) of this section is not followed, an engineering analysis must be submitted to show the coordination of the proposed assignment with existing systems located closer than those standards. The engineering analyses will include: (A) Specification of the interference criteria and system parameters used in the interference study; (B) Nominal service areas of each system included in the interference analysis; (C) Modified service areas resulting from the proposed system. The propagation models used to establish the service boundary limits must be specified and any special terrain features considered in computing the interference impact should be described; and (D) A statement that all parties affected have agreed to the engineering analysis and will accept the calculated levels of interference. (iii) MAS EA licensees shall provide protection in accordance with § 101.1333. (4) Multiple address systems operating on subfrequencies in accordance with § 101.147 that propose to operate master stations at unspecified locations must define the operating area by a radius about a geographical coordinate and describe how interference to co-channel users will be controlled. (5) Multiple address frequencies in the 956.25-956.45 MHz bands may be assigned for use by mobile master stations on a primary basis. Multiple address frequencies in the 941.0-941.5 MHz bands that are licensed on a site-by-site basis and the 952 MHz bands may be assigned for use by primary mobile master stations on a case-by-case basis if the 956.25-956.45 MHz frequencies are unavailable. Multiple address mobile (master and remote) operation is permitted on frequencies licensed by geographic area subject to the interference protection criteria set forth in § 101.1333, i.e., (6) Each application for new or modified nodal station on channels numbered 4A, 4B, 7, 9, and 19/20 in the 10.6 GHz band must demonstrate that all existing co-channel stations are at least 56 kilometers from the proposed nodal station site. Applicants for these channels must certify that all licensees and applicants for stations on the adjacent channels within 56 kilometers of the proposed nodal station have been notified of the proposed station and do not object. Alternatively, or if one of the affected adjacent channel interests does object, the applicant may show that all affected adjacent channel parties are provided a C/I protection ratio of 0 dB. An applicant proposing to operate at an AAT greater than 91 meters must reduce its EIRP in accordance with the following table; however, in no case may EIRP exceed 70 dBm on the 10.6 GHz channels: AAT (meters) EIRP dBm Above 300 + 38 251 to 300 41 201 to 250 43 151 to 200 49 101 to 150 55 100 and below 85 (7) Each application for new or modified nodal station on channels numbered 21, 22, 23, and 24 in the 10.6 GHz band must include an analysis of the potential for harmful interference to all other licensed and previously applied for co-channel and adjacent channel stations located within 80 kilometers of the location of the proposed station. The criteria contained in § 101.103(d)(2) must be used in this analysis. Applicants must certify that copies of this analysis have been served on all parties which might reasonably be expected to receive interference above the levels set out in § 101.103(d)(2) within 5 days of the date the subject application is filed with the Commission. (8) If the potential interference will exceed the prescribed limits, a statement shall be submitted with the application for new or modified stations to the effect that all parties have agreed to accept the higher level of interference. (d) Effective August 1, 1985, when a fixed station that conforms to the technical standards of this subpart (or, in the case of the 12,200-12,700 MHz band, for an incumbent non-MVDDS station or a direct broadcast satellite station) receives or will receive interference in excess of the levels specified in this section as a result of an existing licensee's use of non-conforming equipment authorized between July 20, 1961 and July 1, 1976, and the interference would not result if the interfering station's equipment complied with the current technical standards, the licensee of the non-conforming station must take whatever steps are necessary to correct the situation up to the point of installing equipment which fully conforms to the technical standards of this subpart. In such cases, if the engineering analysis demonstrates that: (1) The conforming station would receive interference from a non-conforming station in excess of the levels specified in this section; and (2) The interference would be eliminated if the non-conforming equipment were replaced with equipment which complies with the standards of this subpart, the licensee (or prospective licensee) of the station which would receive interference must provide written notice of the potential interference to both the non-conforming licensee and the Commission's office in Gettysburg, PA. The non-conforming licensee must make all required equipment changes within 180 days from the date of official Commission notice informing the licensee that it must upgrade its equipment, unless an alternative solution has been agreed to by all parties involved in the interference situation. If a non-conforming licensee fails to make all required changes within the specified period of time, the Commission may require the licensee to suspend operation until the changes are completed. (e) Interference dispute resolution procedures. (1) The licensee experiencing the harmful interference shall notify the licensee believed to be causing the harmful interference and shall supply information describing its problem and supporting its claim; (2) Upon receipt of the harmful interference notice, the licensee alleged to be causing the harmful interference shall respond immediately and make every reasonable effort to identify and resolve the conflict; and (3) Licensees are encouraged to resolve the harmful interference prior to contacting the Commission. [61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998; 65 FR 17449, Apr. 3, 2000; 65 FR 38329, June 20, 2000; 65 FR 59358, Oct. 5, 2000; 66 FR 35110, July 3, 2001; 67 FR 43038, June 28, 2002; 69 FR 31746, June 7, 2004; 70 FR 29996, May 25, 2005] § 101.107 Frequency tolerance. (a) The carrier frequency of each transmitter authorized in these services must be maintained within the following percentage of the reference frequency except as otherwise provided in paragraph (b) of this section or in the applicable subpart of this part (unless otherwise specified in the instrument of station authorization the reference frequency will be deemed to be the assigned frequency): Frequency (MHz) Frequency tolerance (percent) 928 to 929 5 0.0005 932 to 932.5 0.00015 932.5 to 935 0.00025 941 to 941.5 0.00015 941.5 to 944 0.00025 952 to 960 5 0.0005 1,850 to 1,990 0.002 2,110 to 2,200 0.001 2,450 to 2,500 1 0.001 3,700 to 4,200 1 0.005 5,925 to 6,875 1 0.005 6,875 to 7,125 1 0.005 10,550 to 11,700 1 2 0.005 11,700 to 12,200 1 0.005 12,200 to 13,250 4 0.005 14,200 to 14,400 0.03 17,700 to 18,820 3 0.003 18,820 to 18,920 3 0.001 928 to 929 5 0.0005 18,920 to 19,700 3 0.003 19,700 to 27,500 4 7 0.001 29,100 to 29,250 0.001 31,000 to 31,300 6 0.001 31,300 to 40,000 4 0.03 71,000 to 76,000 8 81,000 to 86,000 8 92,000 to 95,000 8 1 2 See 3 4 5 6 7 see 8 (b) Heterodyne microwave radio systems may be authorized at a somewhat less restrictive frequency tolerance (up to .01 percent) to compensate for frequency shift caused by numerous repeaters between base band signal insertion. Where such relaxation is sought, applicant must provide all calculations and indicate the desired tolerance over each path. In such instances the radio transmitters and receivers used must individually be capable of complying with the tolerance specified in paragraph (a) of this section. Heterodyne operation is restricted to channel bandwidth of 10 MHz or greater. (c) As an additional requirement in any band where the Commission makes assignments according to a specified channel plan, provisions must be made to prevent the emission included within the occupied bandwidth from radiating outside the assigned channel at a level greater than that specified in § 101.111. [61 FR 26677, May 28, 1996, as amended at 62 FR 23167, Apr. 29, 1997; 63 FR 6105, Feb. 6, 1998; 63 FR 9448, Feb. 25, 1998; 63 FR 14039, Mar. 24, 1998; 63 FR 36611, July 7, 1998; 66 FR 35110, July 3, 2001; 67 FR 43038, June 26, 2002; 68 FR 4956, Jan. 31, 2003; 69 FR 3266, Jan. 23, 2004; 69 FR 16832, Mar. 31, 2004; 70 FR 4787, Jan. 31, 2005; 76 FR 59572, Sept. 27, 2011; 81 FR 79945, Nov. 14, 2016] § 101.109 Bandwidth. (a) Each authorization issued pursuant to these rules will show, as the emission designator, a symbol representing the class of emission which must be prefixed by a number specifying the necessary bandwidth. This figure does not necessarily indicate the bandwidth actually occupied by the emission at any instant. In those cases where part 2 of this chapter does not provide a formula for the computation of the necessary bandwidth, the occupied bandwidth may be used in the emission designator. (b) Stations in this service will be authorized any type of emission, method of modulation, and transmission characteristic, consistent with efficient use of the spectrum and good engineering practice, except that Type B, damped-wave emission will not be authorized. (c) The maximum bandwidth which will be authorized per frequency assigned is set out in the table that follows. Regardless of the maximum authorized bandwidth specified for each frequency band, the Commission reserves the right to issue a license for less than the maximum bandwidth if it appears that a lesser bandwidth would be sufficient to support an applicant's intended communications. Frequency band (MHz) Maximum authorized bandwidth 928 to 929 25 kHz 1 5 6 932 to 932.5, 941 to 941.5 12.5 kHz 1 5 6 932.5 to 935, 941.5 to 944 200 kHz 1 952 to 960 200 KHz 1 5 6 1,850 to 1,990 10 MHz 1 2,110 to 2,130 3.5 MHz 2,130 to 2,150 800 or 1600 KHz 1 2,150 to 2,160 10 MHz 2,160 to 2,180 3.5 MHz 2,180 to 2,200 800 or 1600 KHz 1 2,450 to 2,483.5 625 KHz 2 2,483.5 to 2,500 800 KHz 3,700 to 4,200 20 MHz 5,925 to 6,425 1 6,425 to 6,525 25 MHz 6,525 to 6,875 30 MHz. 1 6,875 to 7,125 25 MHz 1 10,550 to 10,680 5 MHz 1 10,700 to 11,700 1 12,200 to 12,700 8 500 megahertz 12,700 to 13,150 50 MHz 13,200 to 13,250 25 MHz 17,700 to 18,140 220 MHz 1 18,140 to 18,142 2 MHz 18,142 to 18,580 6 MHz 18,580 to 18,820 20 MHz 1 18,820 to 18,920 10 MHz 18,920 to 19,160 20 MHz 1 19,160 to 19,260 10 MHz 19,260 to 19,700 220 MHz 1 21,200 to 23,600 50 MHz 1 4 24,250 to 25,250 40 MHz 7 29,100 to 29,250 150 MHz 31,000 to 31,075 75 MHz 31,075 to 31,225 150 MHz 31,225 to 31,300 75 MHz 71,000 to 76,000 5000 MHz 81,000 to 86,000 5000 MHz 92,000 to 95,000 ( 3 1 2 3 4 5 6 7 Note to footnote 8 [61 FR 26677, May 28, 1996, as amended at 61 FR 44181, Aug. 28, 1996; 62 FR 23167, Apr. 29, 1997; 62 FR 24582, May 6, 1997; 63 FR 6105, Feb. 6, 1998; 65 FR 17449, Apr. 3, 2000; 65 FR 38329, June 20, 2000; 65 FR 59358, Oct. 5, 2000; 67 FR 43038, June 26, 2002; 68 FR 4956, Jan. 31, 2003; 69 FR 3266, Jan. 23, 2004; 70 FR 29997, May 25, 2005; 75 FR 41771, July 19, 2010; 76 FR 59572, Sept. 27, 2011; 77 FR 54432, Sept. 5, 2012; 81 FR 79945, Nov. 14, 2016] § 101.111 Emission limitations. (a) The mean power of emissions must be attenuated below the mean output power of the transmitter in accordance with the following schedule: (1) When using transmissions other than those employing digital modulation techniques: (i) On any frequency removed from the assigned frequency by more than 50 percent up to and including 100 percent of the authorized bandwidth: At least 25 decibels; (ii) On any frequency removed from the assigned frequency by more than 100 percent up to and including 250 percent of the authorized bandwidth: At least 35 decibels; (iii) On any frequency removed from the assigned frequency by more than 250 percent of the authorized bandwidth: At least 43 + 10 Log 10 (2) When using transmissions employing digital modulation techniques (see § 101.141(b)) in situations not covered in this section: (i) For operating frequencies below 15 GHz, in any 4 KHz band, the center frequency of which is removed from the assigned frequency by more than 50 percent up to and including 250 percent of the authorized bandwidth: As specified by the following equation but in no event less than 50 decibels: A = 35 + 0.8(P −50) + 10 Log10 B. (Attenuation greater than 80 decibels or to an absolute power of less than −13 dBm/1MHz is not required.) where: A = Attenuation (in decibels) below the mean output power level. P = Percent removed from the center frequency of the transmitter bandwidth. B = Authorized bandwidth in MHz. Note: MVDDS operations in the 12.2-12.7 GHz band shall use 24 megahertz for the value of B in the emission mask equation set forth in this section. The emission mask limitation shall only apply at the 12.2-12.7 GHz band edges and does not restrict MVDDS channelization bandwidth within the band. (ii) For operating frequencies above 15 GHz, in any 1 MHz band, the center frequency of which is removed from the assigned frequency by more than 50 percent up to and including 250 percent of the authorized bandwidth: As specified by the following equation but in no event less than 11 decibels: A = 11 + 0.4(P−50) + 10 Log 10 (iii) In any 1 MHz band, the center frequency of which is removed from the assigned frequency by more than 250 percent of the authorized bandwidth: At least 43 + 10 Log 10 (iv) The emission mask for LMDS and the 24 GHz Service shall use the equation in paragraph (a)(2)(ii) of this section and apply it only to the band edge of each block of spectrum, but not to subchannels established by licensees. The value of P in the equation is the percentage removed from the carrier frequency and assumes that the carrier frequency is the center of the actual bandwidth used. The emission mask can be satisfied by locating a carrier of the subchannel sufficiently far from the channel edges so that the emission levels of the mask are satisfied. The LMDS or 24 GHz emission mask shall use a value B (bandwidth) of 40 MHz, for all cases even in the case where a narrower subchannel is used (for instance the actual bandwidth is 10 MHz) and the mean output power used in the calculation is the sum of the output power of a fully populated channel. For block assigned channels, the out-of-band emission limits apply only outside the assigned band of operation and not within the band. (v) The emission mask for the 71-76 GHz, 81-86 GHz, 92-94 GHz, and 94.1-95 GHz bands used in the equation in paragraph (a)(2)(ii) of this section applies only to the edge of each channel, but not to sub-channels established by licensees. The value of P in the equation is for the percentage removed from the carrier frequency and assumes that the carrier frequency is the center of the actual bandwidth used. The value of B will always be 500 MHz. In the case where a narrower sub-channel is used within the assigned bandwidth, such sub-carrier will be located sufficiently far from the channel edges to satisfy the emission levels of the mask. The mean output power used in the calculation is the sum of the output power of a fully populated channel. (vi)(A) In order to protect Federal Earth Exploration-Satellite Service (passive), aeronautical and maritime endpoints in motion operating in the 70 and 80 GHz bands must comply with the following limits: ( 1 ( 2 (B) Any changes to system specifications, operations, or deployment scenarios for aeronautical or maritime end points in motion shall be pre-coordinated with NTIA and affected Federal agencies, and licensees of aeronautical or maritime end points in motion must cooperate fully with any updates to the required unwanted emission limits that may result from these modifications. (3) For Digital Termination System channels used in the Digital Electronic Message Service (DEMS) operating in the 10,550-10,680 MHz band: (i) In any 4 KHz band, the center frequency of which is removed from the edge of the DEMS channel by up to and including 1.125 times the DEMS subchannel bandwidth: As specified by the following equation may in no event be less than 50 + 10 log 10 A = 50 + 0.0333(F − 0.5B) + 10 log 10 Where: A = Attenuation (in decibels) below means output power level contained within the DEMS channel for a given polarization. B = Bandwidth of DEMS channel (in KHz). F = Absolute value of the difference between the center frequency of the 4 KHz band measured and the center frequency of the DEMS channel (in KHz). N = Number of active subchannels of the given polarization within the DEMS channel. (ii) In any 4 KHz band within the authorized DEMS band the center frequency of which is removed from the center frequency of the DEMS channel by more than the sum of 50% of the DEMS channel bandwidth plus 1.125 times the subchannel bandwidth: As specified by the following equation but in no event less than 80 decibels: A = 80 + 10 log 10 (iii) In any 4 KHz band the center frequency of which is outside the authorized DEMS band: At least 43 + 10 log 10 (4) For DEMS channels in the 17,700-19,700 MHz band: (i) In any 4 KHz band, the center frequency of which is removed from the frequency of the center of the DEMS channel by more than 50 percent of the DEMS channel bandwidth up to and including 50 percent plus 500 KHz: As specified by the following equation but in no event be less than 50 + 10 log 10 A = 50 + 0.06(F −0.5B) + 10 log 10 Where: A = Attenuation (in decibels) below means output power level contained within the DEMS channel for a given polarization. B = Bandwidth of DEMS channel (in KHz). F = Absolute value of the difference between the center frequency of the 4 KHz band measured and the center frequency of the DEMS channel (in KHz). N = Number of active subchannels of the given polarization within the DEMS channel. (ii) In any 4 KHz band within the authorized DEMS band, the center frequency of which is removed from the center frequency of the DEMS channel by more than the sum of 50 percent of the channel bandwidth plus 500 KHz: As specified by the following equation but in no event less than 80 decibels: A = 80 + 10 log 10 (iii) In any 4 KHz band the center frequency of which is outside the authorized Digital Message Service band: At least 43 + 10 log 10 (5) When using transmissions employing digital modulation techniques on the 900 MHz multiple address frequencies with a 12.5 KHz bandwidth, the power of any emission must be attenuated below the unmodulated carrier power of the transmitter (P) in accordance with the following schedule: (i) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 2.5 KHz up to and including 6.25 KHz: At least 53 log 10 (ii) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 6.25 KHz up to and including 9.5 KHz: At least 103 log 10 (iii) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 9.5 KHz up to and including 15 KHz: At least 157 log 10 (iv) On any frequency removed from the center of the authorized bandwidth by a displacement frequency greater than 15 KHz: At least 50 plus 10 log 10 (6) When using transmissions employing digital modulation techniques on the 900 MHz multiple address frequencies with a bandwidth greater than 12.5 KHz, the power of any emission must be attenuated below the unmodulated carrier power of the transmitter (P) in accordance with the following schedule: (i) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 5 KHz up to and including 10 KHz: At least 83 log 10 (ii) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 10 KHz up to and including 250 percent of the authorized bandwidth: At least 116 log 10 10 (iii) On any frequency removed from the center of the authorized bandwidth by more that 250 percent of the authorized bandwidth: At least 43 plus 10 log 10 (b) When an emission outside of the authorized bandwidth causes harmful interference, the Commission may, at its discretion, require greater attenuation than specified in paragraph (a) of this section. (c) The emission of an unmodulated carrier is prohibited except for test purposes as required for proper station and system maintenance. (d) Interference to passive sensors. (1) 10.6-10.68 GHz. (A) Limit the maximum transmitter power supplied to the antenna to −15 dBW; and (B) Employ automatic transmitter power control (ATPC). (ii) The maximum transmitter power supplied to the antenna of stations using ATPC may be increased by a value corresponding to the ATPC range, up to a maximum of −3 dBW. (2) 31-31.3 GHz. [61 FR 26677, May 28, 1996, as amended at 62 FR 24582, May 6, 1997; 65 FR 59358, Oct. 5, 2000; 67 FR 43038, June 26, 2002; 68 FR 4957, Jan. 31, 2003; 69 FR 3266, Jan. 23, 2004; 69 FR 31746, June 7, 2004; 80 FR 38912, July 7, 2015; 89 FR 33259, Apr. 29, 2024] § 101.113 Transmitter power limitations. (a) On any authorized frequency, the average power delivered to an antenna in this service must be the minimum amount of power necessary to carry out the communications desired. Application of this principle includes, but is not to be limited to, requiring a licensee who replaces one or more of its antennas with larger antennas to reduce its antenna input power by an amount appropriate to compensate for the increased primary lobe gain of the replacement antenna(s). In no event shall the average equivalent isotropically radiated power (EIRP), as referenced to an isotropic radiator, exceed the values specified below. In cases of harmful interference, the Commission may, after notice and opportunity for hearing, order a change in the effective radiated power of this station. Further, the output power of a transmitter on any authorized frequency in this service may not exceed the following: Frequency band (MHz) Maximum allowable EIRP 1 2 Fixed 1 2 Mobile (dBW) 928.0-929.0(2) + 17 932.0-932.5(2) + 17 932.5-935.0 + 40 941.0-941.5(2) + 30 + 14 941.5-944.0 + 40 952.0-960.0(2) + 40 + 14 1,850-1,990 + 45 2,110-2,150 + 45 2,150-2,180 3 + 45 2,180-2,200 + 45 2,450-2,500 + 45 2,500-2,686 2,686-2,690 + 45 3,700-4,200 + 55 5,925-6,425 + 55 6,425-6,525 + 35 6,525-6,875 + 55 6,875-7,125 + 55 10,550 to 10,600 5 + 55 10,600 to 10,680 5 + 40 10,700-11,700 + 55 12,200-12,700 11 + 50 12,700-13,200 4 + 50 13,200-13,250 4 + 55 14,200-14,400 12 + 45 17,700-18,600 + 55 18,600-18,800 6 + 35 18,800-19,700 5 21,200-23,600 10 + 55 24,250-25,250 5 29,100-29,250 ( 7 31,000 to 31,075 8 9 30 dBW/MHz 30 dBW/MHz 31,075 to 31,225 8 9 30 dBW/MHz 30 dBW/MHz 31,225 to 31,300 8 9 30 dBW/MHz 30 dBW/MHz 71,000-76,000 13 14 +55 +55 81,000-86,000 13 14 +55 +55 92,000-95,000 + 55 + 55 1 2 3 4 5 6 7 8 9 10 11 12 13 (b) The power of transmitters that use Automatic Transmitter Power Control shall not exceed the power input or output specified in the instrument of station authorization. The power of non-ATPC transmitters shall be maintained as near as practicable to the power input or output specified in the instrument of station authorization. (c)(1) Transmitter power limitations. (2) Hub transmitter EIRP spectral area, density limit. 2 (i) The e.i.r.p. aggregate spectral area density is calculated as follows: where: N = number of co-frequency hubs in BTA. A = Area of BTA in km 2 pi = spectral power density into antenna of i-th hub (in W/MHz). gi = gain of i-th hub antenna at zero degree elevation angle. Each pi and gi are in the same 1 MHz within the designated frequency band. (ii) The climate zones in Table 1 are defined for different geographic locations within the US as shown in Appendix 28 of the ITU Radio Regulations. Table 1 1 Climate zone e.i.r.p. Spectral Density (Clear Air) (dBW/MHz-km 2 2 1 −23 2 −25 3,4,5 −26 1 2 (3) Hub transmitter e.i.r.p. spectral area density limit at elevation angles above the horizon. 2 (i) The e.i.r.p. aggregate spectral area density is calculated as follows: where: N = number of co-frequency hubs in BTA. A = Area of BTA in km 2 e.i.r.p. (ai) = equivalent isotropic radiated spectral power density of the i-th hub (in W/MHz) at elevation angle a where a is the angle in degrees of elevation above horizon. e.i.r.p.(0°) is the hub e.i.r.p. area density at the horizon used in Section 101.113c(2). The nominal antenna pattern will be used for elevation angles between 0° and 8°, and average levels will be used for angles beyond 8°, where average levels will be calculated by sampling the antenna patterns in each 1° interval between 8° and 9015, dividing by 83. Table 2 Elevation angle (a) Relative e.i.r.p. density (dBW/MHz-km 2 0° ≤a ≤4.0° e.i.r.p.(a) = e.i.r.p.(0°) + 20 log (sinΠ x)(1/Π x) where x = (a + 1)/7.5°. 4.0° <a ≤7.7° e.i.r.p.(a) = e.i.r.p.(0°) - 3.85a + 7.7. a >7.7° e.i.r.p.(a) = e.i.r.p.(0°) - 22. (ii) LMDS system licensees in two or more BTAs may individually or collectively deviate from the spectral area density computed above by averaging the power over any 200 km by 400 km area, provided that the aggregate interference to the satellite receiver is no greater than if the spectral area density were as specified in Table 1. A showing to the Commission comparing both methods of computation is required and copies shall be served on any affected non-GSO MSS providers. (4) Power reduction techniques. (i) Alternate polarizations. (ii) Frequency interleaving. (iii) Alternative methods. [61 FR 26677, May 28, 1996] Editorial Note: For Federal Register www.govinfo.gov. § 101.115 Directional antennas. Link to an amendment published at 89 FR 33259, Apr. 29, 2024. (a) Unless otherwise authorized upon specific request by the applicant, each station authorized under the rules of this part must employ a directional antenna adjusted with the center of the major lobe of radiation in the horizontal plane directed toward the receiving station with which it communicates: provided, however, (b) Fixed stations (other than temporary fixed stations and DEMS nodal stations) operating at 932.5 MHz or higher must employ transmitting and receiving antennas (excluding second receiving antennas for operations such as space diversity) meeting the appropriate performance Standard A indicated below, except that in areas not subject to frequency congestion, antennas meeting performance Standard B may be used, subject to the requirements set forth in paragraph (d) of this section. For frequencies with a Standard B1 and a Standard B2, in order to comply with Standard B an antenna must fully meet either Standard B1 or Standard B2. Licensees shall comply with the antenna standards table shown in this paragraph in the following manner: (1) With either the maximum beamwidth to 3 dB points requirement or with the minimum antenna gain requirement; and (2) With the minimum radiation suppression to angle requirement. Antenna Standards Frequency (MHz) Category Maximum beamwidth to 3 dB points 1 Minimum antenna gain (dbi) Minimum radiation suppression to angle in degrees from centerline of main beam in decibels 5° to10° 10° to 15° 15° to 20° 20° to 30° 30° to 100° 100° to 140° 140° to 180° 932.5 to 935 A 14.0 n/a n/a 6 11 14 17 20 24 B 20.0 n/a n/a n/a 6 10 13 15 20 941.5 to 944 A 14.0 n/a n/a 6 11 14 17 20 24 B 20.0 n/a n/a n/a 6 10 13 15 20 952 to 960 2 3 A 14.0 n/a n/a 6 11 14 17 20 24 B 20.0 n/a n/a n/a 6 10 13 15 20 1,850 to 2,500 4 A 5.0 n/a 12 18 22 25 29 33 39 B 8.0 n/a 5 18 20 20 25 28 36 3,700 to 4,200 A 2.7 36 23 29 33 36 42 55 55 B 2.7 36 20 24 28 32 32 32 32 B 2.2 38 21 25 29 32 35 39 45 5,925 to 6,425 5 A 2.2 38 25 29 33 36 42 55 55 B1 2.2 38 21 25 29 32 35 39 45 B2 4.1 32 15 20 23 28 29 60 60 6,525 to 6,875 5 A 2.2 38 25 29 33 36 42 55 55 B1 2.2 38 21 25 29 32 35 39 45 B2 4.1 32 15 20 23 28 29 60 60 6,875 to 7,125 A 2.2 38 25 29 33 36 42 55 55 B1 2.2 38 21 25 29 32 35 39 45 B2 4.1 32 15 20 23 28 29 60 60 10,550 to 10,680 7 A 3.5 33.5 18 24 28 32 35 55 55 B 3.5 33.5 17 24 28 32 35 40 45 10,565 to 10,615 n/a 360 n/a n/a n/a n/a n/a n/a n/a n/a 10,630 to 10,680 8 n/a 3.5 34 20 24 28 32 35 36 36 10,700-11,700 5 A 2.2 38 25 29 33 36 42 55 55 B 3.5 33.5 17 24 28 32 35 40 45 12,200 to 13,250 9 A 1.0 n/a 23 28 35 39 41 42 50 B 2.0 n/a 20 25 28 30 32 37 47 17,700 to 18,820 A 2.2 38 25 29 33 36 42 55 55 B1 2.2 38 20 24 28 32 35 36 36 B2 3.3 33.5 18 22 29 31 35 55 55 18,920 to 19,700 10 A 2.2 38 25 29 33 36 42 55 55 B1 2.2 38 20 24 28 32 35 36 36 B2 3.3 33.5 18 22 29 31 35 55 55 21,200 to 23,600 7 11 A 3.3 33.5 18 26 26 33 33 55 55 B1 3.3 33.5 17 24 24 29 29 40 50 B2 4.5 30.5 14 19 22 24 29 52 52 24,250 to 25,250 10 A 2.8 38 25 29 33 36 42 55 60 B 2.8 38 20 24 28 32 35 36 45 31,000 to 31,300 12 13 n/a 4.0 38 n/a n/a n/a n/a n/a n/a n/a B n/a 38 20 24 28 32 35 36 36 71,000 to 76,000 (co-polar) 14 N/A 2.2 38 22 28 32 35 37 55 55 71,000 to 76,000 (cross-polar) 14 N/A 2.2 38 35 35 40 42 47 55 55 81,000 to 86,000 (co-polar) 14 N/A 2.2 38 22 28 32 35 37 55 55 81,000 to 86,000 (cross-polar) 14 N/A 2.2 38 35 35 40 42 47 55 55 92,000 to 95,000 N/A 0.6 50.0 36 40 45 50 55 55 55 1 2 3 (i) The minimum on-beam forward gain must be at least 10 dBi, and (ii) The minimum front-to-back ratio must be at least 20 dB. 4 5 6 7 8 9 10 11 12 13 14 (c) The Commission shall require the replacement of any antenna or periscope antenna system of a permanent fixed station operating at 932.5 MHz or higher that does not meet performance Standard A specified in paragraph (c) of this section, at the expense of the licensee operating such antenna, upon a showing that said antenna causes or is likely to cause interference to (or receive interference from) any other authorized or applied for station whereas a higher performance antenna is not likely to involve such interference. Antenna performance is expected to meet the standards of paragraph (c) of this section for parallel polarization. For cases of potential interference, an antenna will not be considered to meet Standard A unless the parallel polarization performance for the discrimination angle involved meets the requirements, even if the cross-polarization performance controls the interference. (d) In cases where passive reflectors are employed in conjunction with transmitting antenna systems, the foregoing paragraphs of this section also will be applicable. However, in such instances, the center of the major lobe of radiation from the antenna normally must be directed at the passive reflector, and the center of the major lobe of radiation from the passive reflector directed toward the receiving station with which it communicates. (e) Periscope antennas used at an electric power facility plant area will be excluded from the requirements of paragraph (c) of this section on a case-by-case basis where technical considerations or safety preclude the use of other types of antenna systems. (f) In the 10,700-11,700 MHz band, a fixed station may employ transmitting and receiving antennas meeting performance standard B in any area. If a Fixed Service or Fixed Satellite Service licensee or applicant makes a showing that it is likely to receive interference from such fixed station and that such interference would not exist if the fixed station used an antenna meeting performance standard A, the fixed station licensee must modify its use. Specifically, the fixed station licensee must either substitute an antenna meeting performance standard A or operate its system with an EIRP reduced so as not to radiate, in the direction of the other licensee, an EIRP in excess of that which would be radiated by a station using a Category A antenna and operating with the maximum EIRP allowed by the rules. A licensee or prior applicant using an antenna that does not meet performance Standard A may object to a prior coordination notice based on interference only if such interference would be predicted to exist if the licensee or prior applicant used an antenna meeting performance standard A. (g) In the event harmful interference is caused to the operation of other stations, the Commission may, after notice and opportunity for hearing, order changes to be made in the height, orientation, gain and radiation pattern of the antenna system. [61 FR 26677, May 28, 1996] Editorial Note: For Federal Register www.fdsys.gov. § 101.117 Antenna polarization. Except as set forth herein, stations operating in the radio services included in this part are not limited as to the type of polarization of the radiated signal that may be employed. However, in the event interference in excess of permissible levels is caused to the operation of other stations as a result of employing other than linear polarization, the Commission may order a licensee to change its system polarization to mitigate the interference. No change in polarization may be made without prior authorization from the Commission. Unless otherwise allowed, only linear polarization (horizontal and vertical) shall be used. For LMDS systems, unless otherwise authorized, system operators are permitted to use any polarization within its service area, but only vertical and/or horizontal polarization for antennas located within 20 kilometers of the outermost edge of their service area. [68 FR 4957, Jan. 31, 2003] § 101.119 [Reserved] § 101.125 Temporary fixed antenna height restrictions. The overall antenna structure heights employed by mobile stations in the Local Television Transmission Service and by stations authorized to operate at temporary fixed locations may not exceed the height criteria set forth in § 17.7 of this chapter, unless in each instance, authorization for use of a specific maximum antenna height (above ground and above mean sea level) for each location has been obtained from the Commission prior to erection of the antenna. Requests for such authorization must show the inclusive dates of the proposed operation. (Complete information as to rules concerning the construction, marking and lighting of antenna structures is contained in part 17 of this chapter.) § 101.129 Transmitter location. (a) The applicant must determine, prior to filing an application for a radio station authorization, that the antenna site specified therein is adequate to render the service proposed. In cases of questionable antenna locations, it is desirable to conduct propagation tests to indicate the field intensity which may be expected in the principal areas or at the fixed points of communication to be served, particularly where severe shadow problems may be expected. In considering applications proposing the use of such locations, the Commission may require site survey tests to be made pursuant to an experimental license under part 5 of this chapter. In such cases, propagation tests should be conducted in accordance with recognized engineering methods and should be made with a transmitting antenna simulating, as near as possible, the proposed antenna installation. Full data obtained from such surveys and its analysis, including a description of the methods used and the name, address and qualifications of the engineer making the survey, must be supplied to the Commission. (b) In the 12.2-12.7 GHz band, licensees must not locate MVDDS transmitting antennas within 10 km of any qualifying NGSO FSS receiver unless mutual agreement is obtained between the MVDDS and NGSO FSS licensees. Such agreements must be retained by the licensees and made available for inspection by interested parties upon request. (1) A qualifying NGSO FSS receiver, for the purposes of this section, is deemed to be one that is in regular use by an NGSO FSS subscriber for normal reception purposes in the 12.2-12.7 GHz band and not one for monitoring or testing purposes. In addition, qualifying receivers must either be in operation on the date or already be under construction and then operating within thirty days of the date that the MVDDS licensee notifies the NGSO FSS licensee of its intent to construct a new MVDDS transmitting antenna at a specified location. (2) Except as provided in paragraph (b)(3) of this section, the 10 kilometer spacing requirement for each MVDDS transmitting antenna site shall not apply with respect to NGSO FSS receivers that might be installed or become operational (except for those under construction and operating within thirty days as specified in paragraph (b)(1) of this section) subsequent to the original date that the MVDDS licensee provided notice of its intention to construct a given transmission facility. (3) In the event that a proposed MVDDS transmitting antenna for which notice has been duly given to the NGSO FSS licensees has not been placed in normal operation within one calendar year of the date of notice, then the MVDDS licensee loses the benefit of the original notice. Upon such anniversary, the MVDDS licensee must re-determine compliance with the minimum 10 kilometer spacing requirement based upon locations of qualifying NGSO FSS receivers on that anniversary date. A new determination of compliance with the spacing requirement shall be made for each succeeding anniversary of non-operation for each proposed MVDDS transmission site or additional antenna. This provision contemplates that failure to commence normal operation at a given MVDDS transmitting antenna site within one year of the date of NGSO FSS notification may require successive relocations of the proposed transmitter site in order to meet the minimum spacing distance as determined on each anniversary of non-operation. [61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998; 67 FR 43038, June 26, 2002; 78 FR 25176, Apr. 29, 2013] § 101.131 Transmitter construction and installation. (a) The equipment at the operating and transmitting positions must be so installed and protected that it is not accessible to, or capable of being operated by, persons other than those duly authorized by the licensee. (b) In any case where the maximum modulating frequency of a transmitter is prescribed by the Commission, the transmitter must be equipped with a low-pass or band-pass modulation filter of suitable performance characteristics. In those cases where a modulation limiter is employed, the modulation filter must be installed between the transmitter stage in which limiting is effected and the modulated stage of the transmitter. (c) Each transmitter employed in these services must be equipped with an appropriately labeled pilot lamp or meter which will provide continuous visual indication at the transmitter when its control circuits have been placed in a condition to activate the transmitter. In addition, facilities must be provided at each transmitter to permit the transmitter to be turned on and off independently of any remote control circuits associated therewith. (d) At each transmitter control point the following facilities must be installed: (1) A carrier operated device which will provide continuous visual indication when the transmitter is radiating, or, in lieu thereof, a pilot lamp or meter which will provide continuous visual indication when the transmitter control circuits have been placed in a condition to activate the transmitter; and (2) Facilities which will permit the operator to turn transmitter carrier on and off at will. (e) Transmitter control circuits from any control point must be so installed that grounding or shorting any line in the control circuit will not cause the transmitter to radiate: provided, however, That this provision will not be applicable to control circuits of stations which normally operate with continuous radiation or to control circuits which are under the effective operational control of responsible operating personnel 24 hours per day. § 101.133 Limitations on use of transmitters. (a) Transmitters licensed for operation in Common Carrier services may be concurrently licensed or used for non-common carrier communication purposes. Mobile units may be concurrently licensed or used for non-common carrier communication purposes provided that the transmitter is certificated for use in each service. (b) Private operational fixed point-to-point microwave stations authorized in this service may communicate with associated operational-fixed stations and fixed receivers and with units of associated stations in the mobile service licensed under Private Radio Service rule parts. In addition, intercommunication is permitted with other licensed stations and with U.S. Government stations in those cases which require cooperation or coordination of activities or when cooperative use arrangements in accordance with § 101.135 are contemplated; provided, however, that where communication is desired with stations authorized to operate under the authority of a foreign jurisdiction, prior approval of this Commission must be obtained; And provided further, That the authority under which such other stations operate does not prohibit the intercommunication. (c) Two or more persons or governmental entities eligible for private operational fixed point-to-point microwave licenses may use the same transmitting equipment under the following terms and conditions: (1) Each licensee complies with the general operating requirements set out in this part; (2) Each licensee is eligible for the frequency(ies) on which the facility operates; and (3) Each licensee must have the ability to access the transmitter(s) that it is authorized to operate under the multiple licensing arrangement. (d) LMDS subscriber transmissions. (e) Existing private operational fixed wireless licensees applying to become common carrier wireless licensees shall comply with all provisions of the Communications Act and the Commission's rules. Applicants must take all required filings, including FCC Form 601, and receive all necessary Commission approval prior to operating as a common carrier wireless licensee. The regulatory fee associated with FCC wireless application Form 601 is waived for applicants who are existing private operational fixed licensees seeking common carrier status, provided that such licensees have also complied with all other discontinuance requirements of Title II of the Act. Applicants are responsible for all other Commission regulatory fees. [61 FR 26677, May 28, 1996, as amended at 61 FR 44183, Aug. 28, 1996; 63 FR 36611, July 7, 1998; 68 FR 4957, Jan. 31, 2003] § 101.135 Shared use of radio stations and the offering of private carrier service. Licensees of Private Operational Fixed Point-to-Point Microwave radio stations may share the use of their facilities on a non-profit basis or may offer service on a for-profit private carrier basis, subject to the following conditions and limitations: (a) Persons or governmental entities licensed to operate radio systems pursuant to subpart H of this part on any of the private radio frequencies set out in § 101.101 may share such systems with, or provide private carrier service to, any eligible entity for licensing under this part, regardless of individual eligibility restrictions, provided that the communications being carried are permissible under § 101.603. (b) The licensee must maintain access to and control over all facilities authorized under its license; (c) All sharing and private carrier arrangements must be conducted pursuant to a written agreement to be kept as part of the station records; and (d) The licensee must keep an up-to-date list of system sharers and private carrier subscribers and the basis of their eligibility under this part. Such records must be kept current and must be made available upon request for inspection by the Commission. (e) Applicants licensed in the MAS frequencies after June 2, 2000, shall not provide service to others on a for-profit private carrier basis in the 928-928.85/952-952.85/956.25-956.45 MHz bands and the 932.25-932.5/941.25-941.5 MHz bands. [61 FR 26677, May 28, 1996, as amended at 65 FR 17449, Apr. 3, 2000; 65 FR 38330, June 20, 2000; 66 FR 35110, July 3, 2001; 68 FR 4958, Jan. 31, 2003] § 101.137 Interconnection of private operational fixed point-to-point microwave stations. Private operational fixed point-to-point microwave stations may be interconnected with facilities of common carriers subject to applicable tariffs. § 101.139 Authorization of transmitters. (a) Unless specified otherwise, transmitters used in the private operational fixed and common carrier fixed point-to-point microwave and point-to-multipoint services under this part must be a type that has been approved for compliance under Supplier's Declaration of Conformity. Note 1 to paragraph ( a The verification procedure has been replaced by Supplier's Declaration of Conformity. Equipment previously authorized under subpart J of part 2 of this chapter may remain in use. See § 2.950 of this chapter. (b) Any transmitter to be produced for use under the rules of this part may be approved under the equipment authorization procedures set forth in part 2 of this chapter. (c) Certification for an individual transmitter may also be requested by an applicant for a station authorization, pursuant to the procedures set forth in part 2 of this chapter. (d) A transmitter presently shown on an instrument of authorization, which operates on an assigned frequency in the 890-940 MHz band and has not received a grant of certification, may continue to be used by the licensee without certification provided such transmitter continues otherwise to comply with the applicable requirements of this chapter. (e) Certification or Supplier's Declaration of Conformity is not required for portable transmitters operating with peak output power not greater than 250 mW. If operation of such equipment causes harmful interference the FCC may, at its discretion, require the licensee to take such corrective action as is necessary to eliminate the interference. (f) After July 15, 1996, the manufacturer (except for export) or importation of equipment employing digital modulation techniques in the 3700-4200, 5925-6425, 6525-6875, 10,550-10,680 and 10,700-11,700 MHz bands must meet the minimum payload capacity requirements of § 101.141. (g) After April 1, 2005, the manufacture (except for export) or importation of equipment for operation in the 21,200-23,600 MHz band must meet: (1) The 0.001% frequency tolerance requirement for digital systems in § 101.107(a) or the 0.03-0.003% frequency tolerance for analog systems; and (2) For equipment employing digital modulation techniques, the minimum bit rate requirements of § 101.141(a). (h) 71,000-76,000 MHz; 81,000-86,000 MHz. (i) 92,000-94,000 MHz; 94,100-95,000 MHz. [63 FR 36611, July 7, 1998, as amended at 65 FR 59358, Oct. 5, 2000; 67 FR 43038, June 26, 2002; 68 FR 4958, Jan. 31, 2003; 70 FR 29998, May 25, 2005; 82 FR 50838, Nov. 2, 2017] § 101.141 Microwave modulation. (a) Microwave transmitters employing digital modulation techniques and operating below 25.25 GHz (except for MVDDS stations in the 12,200-12,700 MHz band) must, with appropriate multiplex equipment, comply with the following additional requirements: (1) The bit rate, in bits per second, must be equal to or greater than the bandwidth specified by the emission designator in Hertz (e.g., to be acceptable, equipment transmitting at a 20 Mb/s rate must not require a bandwidth of greater than 20 MHz), except the bandwidth used to calculate the minimum rate may not include any authorized guard band. (i) Stations authorized prior to December 1, 1988 may install equipment after that date with no minimum bit rate. Equipment applied for or authorized prior to April 1, 2005 in the 21.2-23.6 GHz band may be installed with no minimum bit rate. (ii) However, any digital equipment applied for after April 1, 2005 and equipment replacing existing equipment in the 21.2-23.6 GHz band must meet the bit rate standard. (2) Equipment to be used for voice transmission placed in service, authorized, or applied for on or before June 1, 1997 in the 2110 to 2130 and 2160 to 2180 MHz bands must be capable of satisfactory operation within the authorized bandwidth to encode at least 96 voice channels. Equipment placed in service, authorized, or applied for on or before June 1, 1997 in the 3700-4200, 5925-6425 (30 MHz bandwidth), and 10,700-11,700 MHz (30 and 40 MHz bandwidths) bands must be capable of satisfactory operation within the authorized bandwidth to encode at least 1152 voice channels. These required loading levels may be reduced by a factor of 1/N provided that N transmitters may be operated satisfactorily, over the same radio path, within an authorized bandwidth less than, or equal to, the maximum authorizable bandwidth (e.g., the 1152 channel requirement may be reduced to 576 if two transmitters can be satisfactorily operated over the same path within the maximum bandwidth). Where certificated equipment is designed to operate on the same frequency in a cross polarized configuration to meet the above capacity requirements, the Commission will require, at the time additional transmitters are authorized, that both polarizations of a frequency be used before a new frequency assignment is made, unless a single transmitter installation was found to be justified by the Commission at the time it authorized the first transmitter. (3)(i) Except as noted in paragraph (a)(7) of this section, the payload capacity of equipment shall meet the following minimum efficiency standards: Frequency Emission bandwidth ≤5 MHz Emission bandwidth >5 MHz and ≤20 MHz Emission bandwidth >20 MHz 3,700-10,550 MHz 2.4 bits/second/Hertz 4.4 bits/second/Hertz 4.4 bits/second/Hertz. 10,550-13,250 MHz 2.4 bits/second/Hertz 4.4 bits/second/Hertz 3.0 bits/second/Hertz. (ii) Traffic loading payload shall exceed 50 percent of payload capacity within 30 months of licensing. During anomalous signal fading, licensees subject to the capacity and loading requirements may adjust to a modulation specified in their authorization if such modulation is necessary to allow licensees to maintain communications, even if the modulation will not comply with the capacity and loading requirements specified in this paragraph. Links that must comply with the capacity and loading requirements that use equipment capable of adjusting modulation must be designed using generally accepted multipath fading and rain fading models to meet the specified capacity and loading requirements at least 99.95% of the time, in the aggregate of both directions in a two-way link. (4) If a transmitter is authorized to operate in a bandwidth that is not listed in paragraph (a)(3) of this section, it must meet the minimum payload capacity and traffic loading requirements of the next largest channel bandwidth listed in the table; e.g., if the authorized bandwidth is 3.5 MHz, the minimum payload capacity must be 12.3 Mbits/s. (5) Transmitters carrying digital motion video motion material are exempt from the requirements specified in paragraphs (a)(2) and (a)(3) of this section, provided that at least 50 percent of the payload is digital video motion material and the minimum bit rate specified in paragraph (a)(1) of this section is met. In the 6, 10, and 11 GHz bands, concatenation of multiple contiguous channels is permitted for channels of equal bandwidth on center frequencies, provided no other channels are available and the minimum payload capacity requirements are met. (6) Digital systems using bandwidths of 10 MHz or larger will be considered 50 percent loaded when at least 50 percent of their total capacity is being used. For purposes of this subsection, a Fixed Service channel is being used if it is attached to a communications system that is capable of providing data to it at a rate that is sufficient to occupy at least 50 percent of the payload capacity of the Fixed Service channel, after header compression is applied. (7) Equipment placed in service after June 1, 1997 and prior to October 5, 2012 may comply with the provisions of § 101.141(a)(3) in effect as of the date the equipment was placed in service. (b) For purposes of compliance with the emission limitation requirements of § 101.111(a)(2) and the requirements of paragraph (a) of this section, digital modulation techniques are considered as being employed when digital modulation occupies 50 percent or more to the total peak frequency deviation of a transmitted radio frequency carrier. The total peak frequency deviation will be determined by adding the deviation produced by the digital modulation signal and the deviation produced by any frequency division multiplex (FDM) modulation used. The deviation (D) produced by the FDM signal must be determined in accordance with § 2.202(f) of this chapter. (c) Analog Modulation. Except for video transmission, an application for an initial working channel for a given route will not be accepted for filing where the anticipated loading (within five years for voice, or other period subject to reasonable projection) is less than the minimum specified for the following frequency bands. Absent extraordinary circumstances, applications proposing additional frequencies over existing routes will not be granted unless it is shown that the traffic load will shortly exhaust the capacity of the existing equipment. Where no construction of radio facilities is requested, licensees must submit this evidence with their filing of any necessary authority required pursuant to section 214 of the Communications Act and part 63 of this chapter. Frequency band (MHz) Minimum number of voice channels (4 KHz or equivalent) 3700 to 4200 (20 MHz bandwidth) 900 5925 to 6425 (10 MHz bandwidth) 300 5925 to 6425 (20 MHz bandwidth) 600 5925 to 6425 (30 MHz bandwidth) 900 6525 to 6875 (10 MHz bandwidth) 300 10,700 to 11,700 (10 MHz bandwidth) 300 10,700 to 11,700 (20 MHz bandwidth) 600 10,700 to 11,700 (30 MHz bandwidth) 900 10,700 to 11,700 (40 MHz bandwidth) 900 [61 FR 26677, May 28, 1996, as amended at 62 FR 24583, May 6, 1997; 63 FR 36611, July 7, 1998; 65 FR 59358, Oct. 5, 2000; 67 FR 43039, June 26, 2002; 68 FR 4958, Jan. 31, 2003; 76 FR 59572, Sept. 27, 2011; 77 FR 54433, Sept. 5, 2012] § 101.143 Minimum path length requirements. (a) The distance between end points of a fixed link in the private operational fixed point-to-point and the common carrier fixed point-to-point microwave services must equal or exceed the value set forth in the table below or the EIRP must be reduced in accordance with the equation set forth below: Frequency band (MHz) Minimum path length (km) Below 1,850 N/A 1,850 to 7,125 17 10,550 to 13,250 5 Above 17,700 N/A (b) For paths shorter than those specified in the table in paragraph (a) of this section, the EIRP shall not exceed the value derived from the following equation: EIRP = MAXEIRP-40*log(A/B) dBW Where: EIRP = The new maximum EIRP (equivalent isotropically radiated power) in dBW. MAXEIRP = Maximum EIRP as set forth in the Table in Section 101.113(a). A = Minimum path length from the Table above for the frequency band in kilometers. B = The actual path length in kilometers. Note to paragraph ( b For transmitters using Automatic Transmitter Power Control, EIRP corresponds to the maximum transmitter power available, not the coordinated transmit power or the nominal transmit power. (c) Upon an appropriate technical showing, applicants and licensees unable to meet the minimum path length requirement may be granted an exception to these requirements. Note to paragraph ( c Links authorized prior to April 1, 1987, need not comply with this requirement. [61 FR 26677, May 28, 1996, as amended at 65 FR 38330, June 20, 2000] § 101.145 Interference to geostationary-satellites. These limitations are necessary to minimize the probability of harmful interference to reception in the bands 2655-2690 MHz, 5925-7075 MHz, and 12.7-13.25 GHz on board geostationary-space stations in the fixed-satellite service. (a) Stations authorized prior to July 1, 1976 in the band 2655-2690 MHz, which exceed the power levels in paragraphs (b) and (c) of this section are permitted to operate indefinitely, provided that the operation of such stations does not result in harmful interference to reception in these bands on board geostationary space stations. (b) 2655 to 2690 MHz and 5925 to 7075 MHz. (1) + 47 dBW for any antenna beam directed within 0.5 degrees of the stationary satellite orbit; or (2) + 47 to + 55 dBW, on a linear decibel scale (8 dB per degree) for any antenna beam directed between 0.5 degrees and 1.5 degrees of the stationary orbit. (c) 12.7 to 13.25 GHz. (d) Methods for calculating the azimuths to be avoided may be found in: CCIR Report No. 393 (Green Books), New Delhi, 1970; in “Radio-Relay Antenna Pointing for controlled Interference With Geostationary-Satellites” by C. W. Lundgren and A. S. May, Bell System Technical Journal, Vol. 48, No. 10, pp. 3387-3422, December 1969; and in “Geostationary Orbit Avoidance Computer Program” by Richard G. Gould, Common Carrier Bureau Report CC-7201, FCC, Washington, DC, 1972. This latter report is available through the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22151, in printed form (PB-211 500) or source card deck (PB-211 501). [61 FR 26677, May 28, 1996, as amended at 65 FR 38330, June 20, 2000; 68 FR 12777, Mar. 17, 2003; 77 FR 54433, Sept. 5, 2012] § 101.147 Frequency assignments. (a) Frequencies in the following bands are available for assignment for fixed microwave services. 928.0-929.0 MHz (28) 932.0-932.5 MHz (27) 932.5-935 MHz (17) 941.0-941.5 MHz (27) 941.5-944 MHz (17) (18) 952.0-960.0 MHz (28) 1,850-1,990 MHz (20) (22) 2,110-2,130 MHz (1) (3) (7) (20) (23) 2,130-2,150 MHz (20) (22) 2,160-2,180 MHz (1) (2) (20) (23) 2,180-2,200 MHz (20) (22) 2,450-2,500 MHz (12) 2,650-2,690 MHz 3,700-4,200 MHz (8) (14) (25) 5,925-6,425 MHz (6) (14) (25) 6,425-6,525 MHz (24) 6,525-6.875 MHz (14) (33) 6,875-7,125 MHz (10) (34) 10,550-10,680 MHz (19) 10,700-11,700 MHz (8) (9) (19) (25) 11,700-12,200 MHz (24) 12,200-12,700 MHz (31) 12,700-13,200 (22), (34) 13,200-13,250 MHz (4) (24) (25) 14,200-14,400 MHz (24) 17,700-18,300 MHz (5) (10) (15) 19,300-19,700 MHz (5) (10) (15) 21,200-22,000 MHz (4) (11) (12) (13) (24) (25) (26) 22,000-23,600 MHz (4) (11) (12) (24) (25) (26) 24,250-25,250 MHz 29,100-29,250 MHz (5) (16) 31,000-31,300 MHz (16) 42,000-42,500 MHz 71,000-76,000 MHz (5) (17) 81,000-86,000 MHz (5) (17) 92,000-94,000 MHz (17) 94,100-95,000 MHz (17) Notes (1) Frequencies in this band are shared with control and repeater stations in the Public Mobile Services and with stations in the International Fixed Public Radio communication Services located south of 25°30′ north latitude in the State of Florida and U. S. possessions in the Caribbean area. Additionally, the band 2160-2162 MHz is shared with stations in the Multipoint Distribution Service. (2) Except upon showing that no alternative frequencies are available, no new assignments will be made in the band 2160-2162 MHz for stations located within 80.5 kilometers (50 miles) of the coordinates of the cities listed in § 21.901(c) of this chapter. (3) Television transmission in this band is not authorized and radio frequency channel widths may not exceed 3.5 MHz. (4) Frequencies in this band are shared with fixed and mobile stations licensed in other services. (5) Frequencies in this band are shared with stations in the fixed-satellite service. (6) These frequencies are not available for assignment to mobile earth stations. (7) Frequencies in the band 2110-2120 MHz may be authorized on a case-by-case basis to Government or non-Government space research earth stations for telecommand purposes in connection with deep space research. (8) This frequency band is shared with station(s) in the Local Television Transmission Service for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, for permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band. This frequency band is also shared in the U.S. Possessions in the Caribbean area, with stations in the International Fixed Public Radiocommunications Services. (9) The band segments 10.95-11.2 and 11.45-11.7 GHz are shared with space stations (space to earth) in the fixed-satellite service. (10) This band is co-equally shared with stations in the fixed services under parts 74, 78 and 101 of this chapter. (11) Frequencies in this band are shared with Government stations. (12) Frequencies in this band are available for assignment to the common carrier and private-operational fixed point-to-point microwave services. (13) Frequencies in this band are shared with stations in the earth exploration satellite service (space to earth). (14) Frequencies in this band are shared with stations in the fixed satellite service. For 3,700-4,200 MHz, frequencies are only available for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, of permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz. (15) Stations licensed as of September 9, 1983 to use frequencies in the 17.7-19.7 GHz band may, upon proper application, continue to be authorized for such operation. (16) As of June 30, 1997, frequencies in these bands are available for assignment only to LMDS radio stations, except for non-LMDS radio stations authorized pursuant to applications refiled no later than June 26, 1998. (17) Frequencies in these bands are shared with Government fixed stations and stations in the Private Operational Fixed Point-to-Point Microwave Service (part 101). (18) Frequencies in the 942 to 944 MHz band are also shared with broadcast auxiliary stations. (19) Frequencies in this band are shared with stations in the private-operational fixed point-to-point microwave service. (20) New facilities in these bands will be licensed only on a secondary basis. Facilities licensed or applied for before January 16, 1992, are permitted to make minor modifications in accordance with § 101.81 and retain their primary status. (21) Any authorization of additional stations to use the 2160-2162 MHz band for Multipoint Distribution Service applied for after January 16, 1992, will be secondary to use of the band for emerging technology services. (22) Frequencies in these bands are for the exclusive use of Private Operational Fixed Point-to-Point Microwave Service (part 101). Frequencies in the 12,700-13,200 MHz band, which were available only to stations authorized in the 12,200-12,700 MHz band as of September 9, 1983, are not available for new facilities. (23) Frequencies in these bands are for the exclusive use of Common Carrier Fixed Point-to-Point Microwave Service (part 101). (24) Frequencies in these bands are available for assignment to television pickup and television non-broadcast pickup stations. The maximum power for the local television transmission service in the 14.2-14.4 GHz band is + 45 dBW except that operations are not permitted within 1.5 degrees of the geostationary orbit. Beginning March 1, 2005, no new LTTS operators will be licensed and no existing LTTS licenses shall be issued in the 11.7-12.2 and 14.2-14.4 GHz bands. (25) Frequencies in these bands are available for assignment to television STL stations. For 3,700-4,200 MHz, frequencies are only available for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, of permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band. (26) Frequencies from 21.8-22.0 GHz and 23.0-23.2 GHz may be authorized for low power, limited coverage systems subject to the provisions of paragraph (s)(8) of this section. (27) Frequencies in the 932 to 932.5 MHz and 941 to 941.5 MHz bands are shared with Government fixed point-to-multipoint stations. Frequencies in these bands are paired with one another and are available for flexible use for transmission of the licensee's products and information services, excluding video entertainment material. 932.00625/941.00625 MHz to 932.24375/941.24375 MHz is licensed by Economic Area. 932.25625/941.25625 MHz to 932.49375/941.49375 MHz is licensed on a site-by-site basis. (28) Licensees that obtain authorizations in the 928/952/956 MHz MAS bands subsequent to July 1, 1999 are limited to private internal services, as defined in § 101.1305. Incumbent operations in the 928/952/956 MHz MAS bands, as defined in § 101.1331(a), are subject to grandfather rights pursuant to § 101.1331. The 928.85-929.0 MHz and 959.85-960.0 MHz bands are licensed on a geographic area basis with no eligibility restrictions. The 928.0-928.85 MHz band paired with the 952.0-952.85 MHz band, in addition to unpaired frequencies in the 956.25-956.45 MHz band, are licensed on a site-by-site basis and used for terrestrial point-to-point and point-to-multipoint fixed and limited mobile operations. The 928.85-929.0 MHz band paired with the 959.85-960.0 MHz band is licensed by Economic Area and used for terrestrial point-to-point and point-to-multipoint fixed operations. (29) Frequencies in this band are shared with stations in the Multipoint Distribution Service (part 21). These frequencies may be used for the transmission of the licensee's products and information services, excluding video entertainment material to the licensee's customers. (30) [Reserved] (31) This frequency band can be used for Multichannel Video Distribution and Data Service (MVDDS) shared with Direct Broadcast Satellite (DBS) Services on a co-primary non-harmful interference basis and on a co-primary basis with NGSO FSS satellite earth stations. Incumbent private operational fixed point-to-point licensees can also use these frequencies on a site by site basis. (32) Frequencies in this band are shared with stations in the fixed-satellite service, subject to the conditions specified in footnote 15 of § 25.202(a)(1) of this chapter, see 47 CFR 47 25.202(a)(1) n.16. (33) The coordination of a new 30 megahertz link in the 6,525-6,875 MHz band should be attempted only if it cannot be accommodated in the 5,925-6,425 MHz band. (34) In the bands 6,875-7,125 MHz and 12,700-13,150 MHz, links shall not intersect with the service areas of television pickup stations. (b) Frequencies normally available for assignment in this service are set forth with applicable limitations in the following tables: 928-960 MHz Multiple address system (MAS) frequencies are available for the point-to-multipoint and point-to-point transmission of a licensee's products or services, excluding video entertainment material, to a licensee's customer or for its own internal communications. The paired frequencies listed in this section are used for two-way communications between a master station and remote stations. Ancillary one-way communications on paired frequencies are permitted on a case-by-case basis. Ancillary communications between interrelated master stations are permitted on a secondary basis. The normal channel bandwidth assigned will be 12.5 kHz. EA licensees, however, may combine contiguous channels without limit or justification. Site-based licensees may combine contiguous channels up to 50 kHz, and more than 50 kHz only upon a showing of adequate justification. Any bandwidth (12.5 kHz, 25 kHz or greater) authorized in accordance with this section may be subdivided into narrower bandwidths to create additional (or sub) frequencies without the need to specify each discrete frequency within the specific bandwidth. Equipment that is used to create additional frequencies by narrowing bandwidth (whether authorized for a 12.5 kHz, 25 kHz or greater bandwidth) will be required to meet, at a minimum, the ±0.00015 percent tolerance requirement so that all subfrequencies will be within the emission mask. Systems licensed for frequencies in these MAS bands prior to August 1, 1975, may continue to operate as authorized until June 11, 1996, at which time they must comply with current MAS operations based on the 12.5 kHz channelization set forth in this paragraph. Systems licensed between August 1, 1975, and January 1, 1981, inclusive, are required to comply with the grandfathered 25 kHz standard bandwidth and channelization requirements set forth in this paragraph. Systems originally licensed after January 1, 1981, and on or before May 11, 1988, with bandwidths of 25 kHz and above, will be grandfathered indefinitely. Note to paragraph ( b Paragraphs (b)(1) through (b)(5) and Tables 1 through 7 of this section pertain to Multiple Address System (MAS) frequencies and paragraph (b)(6) and Tables 8 through 11 of this section pertain to Point-To-Point frequencies. (1) Frequencies listed in this paragraph are designated for private internal use and are subject to site-based licensing. Table 1—Paired Frequencies (MHz) [12.5 kHz bandwidth] Remote transmit Master transmit 928.00625 952.00625 928.01875 952.01875 928.03125 952.03125 928.04375 952.04375 928.05625 952.05625 928.06875 952.06875 928.08125 952.08125 928.09375 952.09375 928.10625 952.10625 928.11875 952.11875 928.13125 952.13125 928.14375 952.14375 928.15625 952.15625 928.16875 952.16875 928.18125 952.18125 928.19375 952.19375 928.20625 952.20625 928.21875 952.21875 928.23125 952.23125 928.24375 952.24375 928.25625 952.25625 928.26875 952.26875 928.28125 952.28125 928.29375 952.29375 928.30625 952.30625 928.31875 952.31875 928.33125 952.33125 928.34375 952.34375 Unpaired Frequencies (MHz) [12.5 kHz bandwidth] D D D 956.25625 956.33125 956.39375 956.26875 956.34375 956.40625 956.28125 956.35625 956.41875 956.29375 956.36875 956.43125 956.30625 956.38125 956.44375 956.31875 Table 2—Paired Frequencies (MHz) [25 kHz bandwidth] Remote transmit Master transmit 928.0125 952.0125 928.0375 952.0375 928.0625 952.0625 928.0875 952.0875 928.1125 952.1125 928.1375 952.1375 928.1625 952.1625 928.1875 952.1875 928.2125 952.2125 928.2375 952.2375 928.2625 952.2625 928.2875 952.2875 928.3125 952.3125 928.3375 952.3375 Unpaired Frequencies (MHz) [25 kHz bandwidth] 956.2625 956.3375 956.4125 956.2875 956.3625 956.4375 956.3125 956.3875 (2) Frequencies listed in this paragraph are designated for private internal use and are subject to site-based licensing. Table 3—Paired Frequencies (MHz) [12.5 kHz bandwidth] Remote transmit Master transmit 928.35625 952.35625 928.36875 928.36875 928.38125 952.38125 928.39375 952.39375 928.40625 952.40625 928.41875 952.41875 928.43125 952.43125 928.44375 952.44375 928.45625 952.45625 928.46875 952.46875 928.48125 952.48125 928.49375 952.49375 928.50625 952.50625 928.51875 952.51875 928.53125 952.53125 928.54375 952.54375 928.55625 952.55625 928.56875 952.56875 928.58125 952.58125 928.59375 952.59375 928.60625 952.60625 928.61875 952.61875 928.63125 952.63125 928.64375 952.64375 928.65625 952.65625 928.66875 952.66875 928.68125 952.68125 928.69375 952.69375 928.70625 952.70625 928.71875 952.71875 928.73125 952.73125 928.74375 952.74375 928.75625 952.75625 928.76875 952.76875 928.78125 952.78125 928.79375 952.79375 928.80625 952.80625 928.81875 952.81875 928.83125 952.83125 928.84375 952.84375 Table 4—Paired Frequencies (MHz) [25 kHz bandwidth] Remote transmit Master transmit 928.3625 952.3625 928.3875 952.3875 928.4125 952.4125 928.4375 952.4375 928.4625 952.4625 928.4875 952.4875 928.5125 952.5125 928.5375 952.5375 928.5625 952.5625 928.5875 952.5875 928.6125 952.6125 928.6375 952.6375 928.6625 952.6625 928.6875 952.6875 928.7125 952.7125 928.7375 952.7375 928.7625 952.7625 928.7875 952.7875 928.8125 952.8125 928.8375 952.8375 (3) Frequencies listed in this paragraph are not restricted to private internal use and are licensed by geographic area. Incumbent facilities must be protected. Table 5—Paired Frequencies (MHz) [12.5 kHz bandwidth] Remote transmit Master transmit 928.85625 959.85625 928.86875 959.86875 928.88125 959.88125 928.89375 959.89375 928.90625 959.90625 928.91875 959.91875 928.93125 959.93125 928.94375 959.94375 928.95625 959.95625 928.96875 959.96875 928.98125 959.98125 928.99375 959.99375 Table 6—Paired Frequencies (MHz) [25 kHz bandwidth] Remote transmit Master transmit 928.8625 959.8625 928.8875 959.8875 928.9125 959.9125 928.9375 959.9375 928.9625 959.9625 928.9875 959.9875 (4) Frequencies listed in this paragraph are licensed by either economic area or on a site-by-site basis. Table 7—Paired Frequencies Remote transmit Master transmit Licensed by Economic Area (12.5 kHz bandwidth): 932.00625 941.00625 932.01875 941.01875 932.03125 941.03125 932.04375 941.04375 932.05625 941.05625 932.06875 941.06875 932.08125 941.08125 932.09375 941.09375 (50 kHz bandwidth): 932.12500 941.12500 (12.5 kHz bandwidth): 932.15625 941.15625 932.16875 941.16875 932.18125 941.18125 932.19375 941.19375 932.20625 941.20625 932.21875 941.21875 932.23125 941.23125 932.24375 941.24375 Reserved for public safety and private internal use. Licensed on site-by-site basis. (12.5 kHz bandwidth): 932.25625 941.25625 932.26875 941.26875 932.28125 941.28125 932.29375 941.29375 932.30625 941.30625 932.31875 941.31875 932.33125 941.33125 932.34375 941.34375 932.35625 941.35625 932.36875 941.36875 932.38125 941.38125 932.39375 941.39375 932.40625 941.40625 932.41875 941.41875 932.43125 941.43125 Reserved for Public Safety and Federal Government Use. Licensed on site-by-site basis. (12.5 kHz bandwidth): 932.44375 941.44375 932.45625 941.45625 932.46875 941.46875 932.48125 941.48125 932.49375 941.49375 (5) Equivalent power and antenna heights for multiple address master stations: Antenna height (AAT) in meters Maximum effective radiated power Watts dBm Above 305 200 53 Above 274 to 305 250 54 Above 244 to 274 315 55 Above 213 to 244 400 56 Above 182 to 213 500 57 Above 152.5 to 182 630 58 152.5 and below 1,000 60 For mobile operations the maximum ERP is 25 watts (44 dBm). (6) Fixed point-to-point frequencies. Table 8—Paired Frequencies [All frequencies may be used by Common Carrier Fixed Point-to-Point and Private Operational Fixed Point-to-Point Microwave Service licensees; 25 kHz bandwidth] Transmit (receive) (MHz) Receive (transmit) (MHz) 932.5125 941.5125 932.5375 941.5375 932.5625 941.5625 932.5875 941.5875 932.6125 941.6125 932.6375 941.6375 932.6625 941.6625 934.8375 943.8375 934.8625 943.8625 934.8875 943.8875 934.9125 943.9125 934.9375 943.9375 934.9625 943.9625 934.9875 943.9875 Table 9—Paired Frequencies [Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave Service licensees, unless otherwise noted; 50 kHz bandwidth] Transmit (receive) (MHz) Receive (transmit) (MHz) 932.70 1 1 932.75 1 1 934.80 1 1 956.65 953.05 956.75 953.15 956.85 953.25 956.95 953.35 957.05 953.45 957.25 953.65 957.35 953.75 957.45 953.85 957.65 954.05 957.75 954.15 957.85 954.25 958.05 954.45 958.15 954.55 958.25 954.65 958.45 954.85 958.55 954.95 958.65 955.05 958.85 955.25 958.95 955.35 959.05 955.45 959.25 955.65 959.35 955.75 959.45 955.85 959.55 955.95 959.65 956.05 1 Table 10—Paired Frequencies [Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave licensees, unless otherwise noted; 100 kHz bandwidth] Transmit (receive) (MHz) Receive (transmit) (MHz) 932.8250 1 1 932.9250 1 1 933.0250 1 1 934.5250 1 1 934.6250 1 1 934.7250 1 1 956.6 953.0 956.7 953.1 956.8 953.2 956.9 953.3 957.0 953.4 957.1 953.5 957.2 953.6 957.3 953.7 957.4 953.8 957.5 953.9 957.6 954.0 957.7 954.1 957.8 954.2 957.9 954.3 958.0 954.4 958.1 954.5 958.2 954.6 958.3 954.7 958.4 954.8 958.5 954.9 958.6 955.0 958.7 955.1 958.8 955.2 958.9 955.3 959.0 955.4 959.1 955.5 959.2 955.6 959.3 955.7 959.4 955.8 959.5 955.9 959.6 956.0 959.7 956.1 1 Table 11—Paired Frequencies [Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave licensees, unless otherwise noted; (200 kHz bandwidth)] Transmit (receive) (MHz) Receive (transmit) (MHz) 933.1750 1 1 933.3750 1 1 933.5750 1 1 933.7750 1 1 933.9750 1 1 934.1750 1 1 934.3750 1 1 957.15 953.55 957.55 953.95 957.95 954.35 958.35 954.75 958.75 955.15 959.15 955.55 1 (c) 1850-1990 MHz. Paired Frequencies Transmit (receive) (MHz) Receive (transmit) (MHz) 1855 1935 1865 1945 1875 1955 1885 1965 1895 1975 1905 1985 Unpaired Frequencies 1915 1 1925 1 1 (2) 5 MHz maximum bandwidth. Paired Frequencies Transmit (receive) (MHz) Receive (transmit) (MHz) 1860 1940 1870 1950 1880 1960 1890 1970 1900 1980 (d) 2130-2150 MHz; 2180-2200 MHz. Paired Frequencies 2130-2150 2180-2200 Transmit (receive) (MHz) Receive (transmit) (MHz) 2130.8 2180.8 2131.6 1 2132.4 2182.4 2133.2 1 2134.0 2184.0 2134.8 1 2135.6 2185.6 2136.4 1 2137.2 2187.2 2138.0 1 2139.6 1 2138.8 2188.8 2140.4 2190.4 2141.2 1 2142.0 2192.0 2142.8 1 2143.6 2193.6 2144.4 1 2145.2 2195.2 2146.0 1 2146.8 2196.8 2147.6 1 2148.4 2198.4 2149.2 2199.2 1 (e) [Reserved] (f) 2450-2500 MHz. (2) Stations licensed in this band under this part prior to March 1, 1996, are grandfathered and may continue their authorized operations. Stations licensed in the 2483.5-2500 MHz portion of the band as of July 25, 1985, and licensees whose initial applications were filed on or before July 25, 1985, are grandfathered, and may continue operations, subject only to license renewal, on a co-primary basis with with the mobile-satellite and radiodetermination-satellite services, and in the segment 2495-2500 MHz, their operations are also on a co-primary basis with part 27 fixed and mobile except aeronautical mobile service operations. (3) 625 KHz bandwidth channels. The normal bandwidth authorized will be 625 KHz. Upon adequate justification, additional contiguous channels may be authorized to provide up to a 2500 KHz bandwidth. Paired Frequencies Transmit (receive) (MHz) Receive (transmit) (MHz) 2450.3125 2467.5625 2450.9375 2468.1875 2451.5625 2468.8125 2452.1875 2469.4375 2452.8125 2470.0625 2453.4375 2470.6875 2454.0625 2471.3125 2454.6875 2471.9375 2455.3125 2472.5625 2455.9375 2473.1875 2456.5625 2473.8125 2457.1875 2474.4375 2457.8125 2475.0625 2458.4375 2475.6875 2459.0625 2476.3125 2459.6875 2476.9375 2460.3125 2477.5625 2460.9375 2478.1875 2461.5625 2478.8125 2462.1875 2479.4375 2462.8125 2480.0625 2463.4375 2480.6875 2464.0625 2481.3125 2464.6875 2481.9375 2465.3125 2482.5625 2465.9375 2483.1875 (g) [Reserved] (h) 3,700 to 4,200 MHz outside the contiguous United States. 20 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 3710 3750 3730 3770 3790 3830 3810 3850 3870 3910 3890 3930 3950 3990 3970 4010 4030 4070 4050 4090 4110 4150 4130 4170 N/A 1 1 (i) 5,925 to 6,425 MHz. (1) 400 kHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 5925.225 6177.100 5925.625 6177.500 5926.050 6177.925 5926.450 6178.325 5926.875 6178.750 5927.275 6179.150 5927.725 6179.600 5928.125 6180.000 5928.550 6180.425 5928.950 6180.825 5929.375 6181.250 5929.775 6181.650 6168.350 6420.225 6168.750 6420.625 6169.175 6421.050 6169.575 6421.450 6170.000 6421.875 6170.400 6422.275 6170.850 6422.725 6171.250 6423.125 6171.675 6423.550 6172.075 6423.950 6172.500 6424.375 6172.900 6424.775 (2) 800 kHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 5925.425 6177.300 5926.250 6178.125 5927.075 6178.950 5927.925 6179.800 5928.750 6180.625 5929.575 6181.450 6168.550 6420.425 6169.375 6421.250 6170.200 6422.075 6171.050 6422.925 6171.875 6423.750 6172.700 6424.575 (3) 1.25 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 5925.625 6177.500 5926.875 6178.750 5928.125 6180.000 5929.375 6181.250 6108.893 6360.933 6110.128 6362.168 6111.364 6363.404 6112.599 6364.639 6113.834 6365.874 6115.070 6367.110 6116.305 6368.345 6117.541 6369.581 6118.776 6370.816 6120.011 6372.051 6121.247 6373.287 6122.482 6374.522 6123.718 6375.758 6124.953 6376.993 6126.189 6378.229 6127.424 6379.464 6128.659 6380.699 6129.895 6381.935 6131.130 6383.170 6132.366 6384.406 6133.601 6385.641 6134.836 6386.876 6136.072 6388.112 6137.307 6389.347 6138.543 6390.583 6139.778 6391.818 6141.014 6393.054 6142.249 6394.289 6143.484 6395.524 6144.720 6396.760 6145.955 6397.995 6147.191 6399.231 6148.426 6400.466 6149.661 6401.701 6150.897 6402.937 6152.132 6404.172 6153.368 6405.408 6154.603 6406.643 6155.839 6407.879 6157.074 6409.114 6158.309 6410.349 6159.545 6411.585 6160.780 6412.820 6162.016 6414.056 6163.251 6415.291 6164.486 6416.526 6165.722 6417.762 6166.957 6418.997 6168.750 6420.625 6170.000 6421.875 6171.250 6423.125 6172.500 6424.375 6173.750 1 N/A 6175.000 1 N/A 6176.250 1 N/A 1 (4) 2.5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 5926.250 6178.125 5928.750 6180.625 6109.510 6361.550 6111.981 6364.021 6114.452 6366.492 6116.923 6368.963 6119.394 6371.434 6121.865 6373.905 6124.335 6376.375 6126.806 6378.846 6129.277 6381.317 6131.748 6383.788 6134.219 6386.259 6136.690 6388.730 6139.160 6391.200 6141.631 6393.671 6144.102 6396.142 6146.573 6398.613 6149.044 6401.084 6151.515 6403.555 6153.985 6406.025 6156.456 6408.496 6158.927 6410.967 6161.398 6413.438 6163.869 6415.909 6166.340 6418.380 6169.375 6421.250 6171.875 6423.750 6175.625 1 N/A 1 (5) 3.75 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6111.364 6363.404 6116.305 6368.345 6121.247 6373.287 6126.189 6378.229 6131.130 6383.170 6136.072 6388.112 6141.014 6393.054 6145.955 6397.995 6150.897 6402.937 6155.839 6407.879 6160.780 6412.820 6165.722 6417.762 6175.000 1 N/A 1 (6) 5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6110.75 6362.79 6115.69 6367.73 6120.63 6372.67 6125.57 6377.61 6130.51 6382.55 6135.45 6387.49 6140.40 6392.44 6145.34 6397.38 6150.28 6402.32 6155.22 6407.26 6160.16 6412.20 6165.10 6417.14 (7) 10 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 5935.32 6187.36 5945.20 6197.24 5955.08 6207.12 5964.97 6217.01 5974.85 6226.89 5984.73 6236.77 5994.62 6246.66 6004.50 6256.54 6014.38 6266.42 6024.27 6276.31 6034.15 6286.19 6044.03 6296.07 6053.92 6305.96 6063.80 6315.84 6073.68 6325.72 6083.57 6335.61 6093.45 6345.49 6103.33 6355.37 6113.22 1 1 6123.10 1 1 6132.98 1 1 6142.87 1 1 6152.75 1 1 6162.63 1 1 1 (8) 30 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 5945.20 6197.24 5974.85 6226.89 6004.50 6256.54 6034.15 6286.19 6063.80 6315.84 6093.45 6345.49 6123.10 1 1 6152.75 1 1 1 (9) 60 MHz bandwidth channels: 1 Transmit Receive 5960.025 6212.065 6019.325 6271.365 6078.625 6330.665 6137.925 6389.965 (j) 6,425 to 6,525 MHz: Mobile. (1) 1 MHz maximum authorized bandwidth channels: Transmit (or receive) (MHz) Receive (or transmit) (MHz) 6425.5 6475.5 6450.5 6500.5 (2) 8 MHz maximum authorized bandwidth channels: Transmit (or receive) (MHz) Receive (or transmit) (MHz) 6430.0 6480.0 6438.0 6488.0 6446.0 6496.0 6455.0 6505.0 6463.0 6513.0 6471.0 6521.0 (3) 25 MHz maximum authorized bandwidth channels: Transmit (or receive) (MHz) Receive (or transmit) (MHz) 6437.5 6487.5 6462.5 6512.5 (k) 6,525 to 6,875 MHz. (1) 400 kHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6525.225 6870.225 6525.625 6870.625 6526.050 6871.050 6526.450 6871.450 6526.875 6871.875 6527.275 6872.275 6527.725 6872.725 6528.125 6873.125 6528.550 6873.550 6528.950 6873.950 6529.375 6874.375 6529.775 6874.775 (2) 800 kHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6525.425 6870.425 6526.250 6871.250 6527.075 6872.075 6527.925 6872.925 6528.750 6873.750 6529.575 6874.575 (3) 1.25 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6525.625 6870.625 6526.875 6871.875 6528.125 6873.125 6529.375 6874.375 6540.625 1 1 6541.875 1 1 6543.125 1 1 6544.375 1 1 6545.625 1 1 6546.875 1 1 6548.125 6728.125 6549.375 6729.375 6550.625 6730.625 6551.875 6731.875 6553.125 1 1 6554.375 1 1 6555.625 1 1 6556.875 1 1 6558.125 6738.125 6559.375 6739.375 6560.625 6740.625 6561.875 6741.875 6563.125 6733.125 6564.375 6734.375 6565.625 6735.625 6566.875 6736.875 6568.125 1 1 6569.375 1 1 6580.625 1 1 6581.875 1 1 6583.125 6743.125 6584.375 6744.375 6585.625 6745.625 6586.875 6746.875 6588.125 6748.125 6589.375 6749.375 6590.625 6750.625 6591.875 6751.875 6593.125 6753.125 6594.375 6754.375 6595.625 6755.625 6596.875 6756.875 6598.125 6758.125 6599.375 6759.375 6600.625 6760.625 6601.875 6761.875 6603.125 6763.125 6604.375 6764.375 6605.625 6765.625 6606.875 6766.875 6608.125 6768.125 6609.375 6769.375 6610.625 6770.625 6611.875 6771.875 6613.125 6773.125 6614.375 6774.375 6615.625 6775.625 6616.875 6776.875 6618.125 6778.125 6619.375 6779.375 6620.625 6780.625 6621.875 6781.875 6623.125 6783.125 6624.375 6784.375 6625.625 6785.625 6626.875 6786.875 6628.125 6788.125 6629.375 6789.375 6630.625 6790.625 6631.875 6791.875 6633.125 6793.125 6634.375 6794.375 6635.625 6795.625 6636.875 6796.875 6638.125 6798.125 6639.375 6799.375 6640.625 6800.625 6641.875 6801.875 6643.125 6803.125 6644.375 6804.375 6645.625 6805.625 6646.875 6806.875 6648.125 6808.125 6649.375 6809.375 6650.625 6810.625 6651.875 6811.875 6653.125 6813.125 6654.375 6814.375 6655.625 6815.625 6656.875 6816.875 6658.125 6818.125 6659.375 6819.375 6660.625 6820.625 6661.875 6821.875 6663.125 6823.125 6664.375 6824.375 6665.625 6825.625 6666.875 6826.875 6668.125 6828.125 6669.375 6829.375 6670.625 6830.625 6671.875 6831.875 6673.125 6833.125 6674.375 6834.375 6675.625 6835.625 6676.875 6836.875 6678.125 6838.125 6679.375 6839.375 6680.625 6840.625 6681.875 6841.875 6683.125 6843.125 6684.375 6844.375 6685.625 6845.625 6686.875 6846.875 6688.125 6848.125 6689.375 6849.375 6690.625 6850.625 6691.875 6851.875 6693.125 6853.125 6694.375 6854.375 6695.625 6855.625 6696.875 6856.875 6698.125 6858.125 6699.375 6859.375 6700.625 6860.625 6701.875 6861.875 6703.125 6863.125 6704.375 6864.375 6705.625 6865.625 6706.875 6866.875 6708.125 1 1 6709.375 1 1 1 (4) 2.5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6526.25 6871.25 6528.75 6873.75 6541.25 1 1 6543.75 1 1 6546.25 1 1 6548.75 6728.75 6551.25 6731.25 6553.75 1 1 6556.25 1 1 6558.75 6738.75 6561.25 6741.25 6563.75 6733.75 6566.25 6736.25 6568.75 1 1 6581.25 1 1 6583.75 6743.75 6586.25 6746.25 6588.75 6748.75 6591.25 6751.25 6593.75 6753.75 6596.25 6756.25 6598.75 6758.75 6601.25 6761.25 6603.75 6763.75 6606.25 6766.25 6608.75 6768.75 6611.25 6771.25 6613.75 6773.75 6616.25 6776.25 6618.75 6778.75 6621.25 6781.25 6623.75 6783.75 6626.25 6786.25 6628.75 6788.75 6631.25 6791.25 6633.75 6793.75 6636.25 6796.25 6638.75 6798.75 6641.25 6801.25 6643.75 6803.75 6646.25 6806.25 6648.75 6808.75 6651.25 6811.25 6653.75 6813.75 6656.25 6816.25 6658.75 6818.75 6661.25 6821.25 6663.75 6823.75 6666.25 6826.25 6668.75 6828.75 6671.25 6831.25 6673.75 6833.75 6676.25 6836.25 6678.75 6838.75 6681.25 6841.25 6683.75 6843.75 6686.25 6846.25 6688.75 6848.75 6691.25 6851.25 6693.75 6853.75 6696.25 6856.25 6698.75 6858.75 6701.25 6861.25 6703.75 6863.75 6706.25 6866.25 6708.75 1 1 1 (5) 3.75 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6545.625 1 6715.625 1 6550.625 6730.625 6555.625 1 6725.625 1 6560.625 6740.625 6565.625 6735.625 6585.625 6745.625 6590.625 6750.625 6595.625 6755.625 6600.625 6760.625 6605.625 6765.625 6610.625 6770.625 6615.625 6775.625 6620.625 6780.625 6625.625 6785.625 6630.625 6790.625 6635.625 6795.625 6640.625 6800.625 6645.625 6805.625 6650.625 6810.625 6655.625 6815.625 6660.625 6820.625 6665.625 6825.625 6670.625 6830.625 6675.625 6835.625 6680.625 6840.625 6685.625 6845.625 6690.625 6850.625 6695.625 6855.625 6700.625 6860.625 6705.625 6865.625 6710.625 1 1 1 (6) 5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6545 1 1 6550 6730 6555 1 1 6560 6740 6565 6735 6585 6745 6590 6750 6595 6755 6600 6760 6605 6765 6610 6770 6615 6775 6620 6780 6625 6785 6630 6790 6635 6795 6640 6800 6645 6805 6650 6810 6655 6815 6660 6820 6665 6825 6670 6830 6675 6835 6680 6840 6685 6845 6690 6850 6695 6855 6700 6860 6705 6865 6710 1 1 1 (7) 10 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6545 1 1 6555 1 1 6565 6735 6585 6745 6595 6755 6605 6765 6615 6775 6625 6785 6635 6795 6645 6805 6655 6815 6665 6825 6675 6835 6685 6845 6695 6855 6705 6865 6535 2 2 1 2 (8) 30 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 6555 6725 6595 6755 6625 6785 6655 6815 6685 6845 (l) 6875 to 7125 MHz. (1) 5 MHz bandwidth channels: Transmit Receive 6877.5 7027.5 6882.5 7032.5 6887.5 7037.5 6892.5 7042.5 6897.5 7047.5 6902.5 7052.5 6907.5 7057.5 6912.5 7062.5 6917.5 7067.5 6922.5 7072.5 6927.5 7077.5 6932.5 7082.5 6937.5 7087.5 6942.5 7092.5 6947.5 7097.5 6952.5 7102.5 6957.5 7107.5 6962.5 7112.5 6967.5 7117.5 6972.5 7122.5 (2) 8.33 MHz bandwidth channels: Transmit Receive 6879.165 7029.165 6887.495 7037.495 6895.825 7045.825 6904.155 7054.155 6912.485 7062.485 6920.815 7070.815 6929.145 7079.145 6937.475 7087.475 6945.805 7095.805 6954.135 7104.135 6962.465 7112.465 6970.795 7120.795 (3) 12.5 MHz bandwidth channels: Transmit Receive 6881.25 7031.25 6893.75 7043.75 6906.25 7056.25 6918.75 7068.75 6931.25 7081.25 6943.75 7093.75 6956.25 7106.25 6968.75 7118.75 (4) 25 MHz bandwidth channels: Transmit Receive 6887.5 7037.5 6912.5 7062.5 6937.5 7087.5 6962.5 7112.5 (m) 10,550 to 10,680 MHz. (1) 400 kHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10605.225 10670.225 10605.625 10670.625 10606.050 10671.050 10606.450 10671.450 10606.875 10671.875 10607.275 10672.275 10607.725 10672.725 10608.125 10673.125 10608.550 10673.550 10608.950 10673.950 10609.375 10674.375 10609.775 10674.775 10610.225 10675.225 10610.625 10675.625 10611.050 10676.050 10611.450 10676.450 10611.875 10676.875 10612.275 10677.275 10612.725 10677.725 10613.125 10678.125 10613.550 10678.550 10613.950 10678.950 10614.375 10679.375 10614.775 10679.775 (2) 800 kHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10605.425 10670.425 10606.250 10671.250 10607.075 10672.075 10607.925 10672.925 10608.750 10673.750 10609.575 10674.575 10610.425 10675.425 10611.250 10676.250 10612.075 10677.075 10612.925 10677.925 10613.750 10678.750 10614.575 10679.575 (3) 1.25 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10550.625 10615.625 10551.875 10616.875 10553.125 10618.125 10554.375 10619.375 10555.625 10620.625 10556.875 10621.875 10558.125 10623.125 10559.375 10624.375 10560.625 10625.625 10561.875 10626.875 10563.125 10628.125 10564.375 10629.375 10565.625 10630.625 10566.875 10631.875 10568.125 10633.125 10569.375 10634.375 10570.625 10635.625 10571.875 10636.875 10573.125 10638.125 10574.375 10639.375 10575.625 10640.625 10576.875 10641.875 10578.125 10643.125 10579.375 10644.375 10580.625 10645.625 10581.875 10646.875 10583.125 10648.125 10584.375 10649.375 10585.625 10650.625 10586.875 10651.875 10588.125 10653.125 10589.375 10654.375 10590.625 10655.625 10591.875 10656.875 10593.125 10658.125 10594.375 10659.375 10595.625 10660.625 10596.875 10661.875 10598.125 10663.125 10599.375 10664.375 10600.625 10665.625 10601.875 10666.875 10603.125 10668.125 10604.375 10669.375 10605.625 10670.625 10606.875 10671.875 10608.125 10673.125 10609.375 10674.375 10610.625 10675.625 10611.875 10676.875 10613.125 10678.125 10614.375 10679.375 (4) 2.5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10551.25 10616.25 10553.75 10618.75 10556.25 10621.25 10558.75 10623.75 10561.25 10626.25 10563.75 10628.75 10566.25 10631.25 10568.75 10633.75 10571.25 10636.25 10573.75 10638.75 10576.25 10641.25 10578.75 10643.75 10581.25 1 1 10583.75 1 1 10586.25 1 1 10588.75 1 1 10591.25 1 1 10593.75 1 1 10596.25 1 1 10598.75 1 1 10601.25 1 1 10603.75 1 1 10606.25 1 1 10608.75 1 1 10611.25 1 1 10613.75 1 1 1 (5) 3.75 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10553.125 10618.125 10558.125 10623.125 10563.125 10628.125 10568.125 10633.125 10573.125 10638.125 10578.125 10643.125 10583.125 10648.125 10588.125 10653.125 10593.125 10658.125 10598.125 10663.125 10603.125 10668.125 (6) 5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10552.5 10617.5 10557.5 10622.5 10562.5 10627.5 10567.5 1 1 10572.5 1 1 10577.5 1 1 10582.5 1 1 10587.5 10652.5 10592.5 10657.5 10597.5 10662.5 10602.5 10667.5 1 (n) Point-to-multipoint systems licensed, in operation, or applied for in the 10,550-10,680 MHz band prior to July 15, 1993, are permitted to use the DEMS frequencies noted above if they prior coordinate such usage with the necessary parties including 10 GHz point-to-point applicants and licensees. DEMS Nodal Stations shall use the band 10,565-10,615 MHz while DEMS User Stations shall use the band 10,630-10,680 MHz. (o) 10,700 to 11,700 MHz. (1) 1.25 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 11130.625 11620.625 11131.875 11621.875 11133.125 11623.125 11134.375 11624.375 11135.625 11625.625 11136.875 11626.875 11138.125 11628.125 11139.375 11629.375 11140.625 11630.625 11141.875 11631.875 11143.125 11633.125 11144.375 11634.375 11145.625 11635.625 11146.875 11636.875 11148.125 11638.125 11149.375 11639.375 11150.625 11640.625 11151.875 11641.875 11153.125 11643.125 11154.375 11644.375 11155.625 11645.625 11156.875 11646.875 11158.125 11648.125 11159.375 11649.375 11160.625 11650.625 11161.875 11651.875 11163.125 11653.125 11164.375 11654.375 11165.625 11655.625 11166.875 11656.875 11168.125 11658.125 11169.375 11659.375 11170.625 11660.625 11171.875 11661.875 11173.125 11663.125 11174.375 11664.375 11175.625 11665.625 11176.875 11666.875 11178.125 11668.125 11179.375 11669.375 11180.625 11680.625 11181.875 11681.875 11183.125 11683.125 11184.375 11684.375 11185.625 11685.625 11186.875 11686.875 11188.125 11688.125 11189.375 11689.375 11190.625 11690.625 11191.875 11691.875 11193.125 11693.125 11194.375 11694.375 11195.625 11695.625 11196.875 11696.875 11198.125 11698.125 11199.375 11699.375 (2) 2.5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 11131.25 11621.25 11133.75 11623.75 11136.25 11626.25 11138.75 11628.75 11141.25 11631.25 11143.75 11633.75 11146.25 11636.25 11148.75 11638.75 11151.25 11641.25 11153.75 11643.75 11156.25 11646.25 11158.75 11648.75 11161.25 11651.25 11163.75 11653.75 11166.25 11656.25 11168.75 11658.75 11171.25 11661.25 11173.75 11663.75 11176.25 11666.25 11178.75 11668.75 11181.25 11681.25 11183.75 11683.75 11186.25 11686.25 11188.75 11688.75 11191.25 11691.25 11193.75 11693.75 11196.25 11696.25 11198.75 11698.75 (3) 3.75 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 11133.125 11623.125 11138.125 11628.125 11143.125 11633.125 11148.125 11638.125 11153.125 11643.125 11158.125 11648.125 11163.125 11653.125 11168.125 11658.125 11173.125 11663.125 11178.125 11668.125 11183.125 11683.125 11188.125 11688.125 11193.125 11693.125 11198.125 11698.125 (4) 5 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 11132.5 11622.5 11137.5 11627.5 11142.5 11632.5 11147.5 11637.5 11152.5 11642.5 11157.5 11647.5 11162.5 11652.5 11167.5 11657.5 11172.5 11662.5 11177.5 11667.5 11182.5 11682.5 11187.5 11687.5 11192.5 11692.5 11197.5 11697.5 (5) 10 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10705 11205 10715 11215 10725 2 1 10735 11225 10745 11235 10755 11245 10765 11255 10775 11265 10785 11275 10795 11285 10805 11295 10815 11305 10825 11315 10835 11325 10845 11335 10855 11345 10865 11355 10875 11365 10885 11375 10895 11385 10905 11395 10915 11405 10925 11415 10935 11425 10945 11435 10955 11445 10965 11455 10975 11465 10985 11475 10995 11485 11005 11495 11015 11505 11025 11515 11035 11525 11045 11535 11055 11545 11065 11555 11075 11565 11085 11575 11095 11585 11105 11595 11115 11605 11125 11615 11135 1 1 11145 1 1 11155 1 1 11165 1 1 11175 1 1 11185 1 1 11195 1 1 1 2 (6) 30 MHz bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 10715 11215 10755 11245 10795 11285 10835 11325 10875 11365 10915 11405 10955 11445 10995 11485 11035 11525 11075 11565 11115 11605 11155 1 1 11185 1 1 1 (7) 40 MHz bandwidth channels: 2 Transmit (receive) (MHz) Receive (transmit) (MHz) 10735 11225 10775 11265 10815 11305 10855 11345 10895 11385 10935 11425 10975 11465 11015 11505 11055 11545 11095 11585 11135 1 1 11175 1 1 1 2 (8) 80 MHz bandwidth channels: 1 Transmit Receive 10755 11245 10835 11325 10915 11405 10995 11485 11075 11565 11155 11645 (p) 12,200 to 13,150 MHz 12,000-12,700 MHz. (2) 12,700 to 13,150 MHz. (i) 5 MHz channels: Transmit Receive 12702.5 12927.5 12707.5 12932.5 12712.5 12937.5 12717.5 12942.5 12722.5 12947.5 12727.5 12952.5 12732.5 12957.5 12737.5 12962.5 12742.5 12967.5 12747.5 12972.5 12752.5 12977.5 12757.5 12982.5 12762.5 12987.5 12767.5 12992.5 12772.5 12997.5 12777.5 13002.5 12782.5 13007.5 12787.5 13012.5 12792.5 13017.5 12797.5 13022.5 12802.5 13027.5 12807.5 13032.5 12812.5 13037.5 12817.5 13042.5 12822.5 13047.5 12827.5 13052.5 12832.5 13057.5 12837.5 13062.5 12842.5 13067.5 12847.5 13072.5 12852.5 13077.5 12857.5 13082.5 12862.5 13087.5 12867.5 13092.5 12872.5 13097.5 12877.5 13102.5 12882.5 13107.5 12887.5 13112.5 12892.5 13117.5 12897.5 13122.5 12902.5 13127.5 12907.5 13132.5 12912.5 13137.5 12917.5 13142.5 12922.5 13147.5 (ii) 8.33 MHz bandwidth channels: Transmit Receive 12704.165 12929.165 12712.495 12937.495 12720.825 12945.825 12729.155 12954.155 12737.485 12962.485 12745.815 12970.815 12754.145 12979.145 12762.475 12987.475 12770.805 12995.805 12779.135 13004.135 12787.465 13012.465 12795.795 13020.795 12804.125 13029.125 12812.455 13037.455 12820.785 13045.785 12829.115 13054.115 12837.445 13062.445 12845.775 13070.775 12854.105 13079.105 12862.435 13087.435 12870.765 13095.765 12879.095 13104.095 12887.425 13112.425 12895.755 13120.755 12904.085 13129.085 12912.415 13137.415 (iii) 12.5 MHz bandwidth channels: Transmit Receive 12706.25 12931.25 12718.75 12943.75 12731.25 12956.25 12743.75 12968.75 12756.25 12981.25 12768.75 12993.75 12781.25 13006.25 12793.75 13018.75 12806.25 13031.25 12818.75 13043.75 12831.25 13056.25 12843.75 13068.75 12856.25 13081.25 12868.75 13093.75 12881.25 13106.25 12893.75 13118.75 12906.25 13131.25 12918.75 13143.75 (iv) 25 MHz bandwidth channels: Transmit Receive 12712.5 12937.5 12737.5 12962.5 12762.5 12987.5 12787.5 13012.5 12812.5 13037.5 12837.5 13062.5 12862.5 13087.5 12887.5 13112.5 12912.5 13137.5 (v) 50 MHz bandwidth channels: Transmit Receive 12725 12950 12775 13000 12825 13050 12875 13100 (q) Special provisions for incumbent low power, limited coverage systems in the band segments 12.2-12.7 GHz. (1) As of May 23, 2002, the Commission no longer accepts applications for new stations in this service and incumbent stations may remain in service provided they do not cause harmful interference to any other primary services licensed in this band as described in paragraph (p) of this section. However, incumbent licensees and previously filed applicants may file applications for minor modifications and amendments (as defined in § 1.929 of this chapter) thereto, renewals, transfer of control, or assignment of license. (2) Prior to December 8, 2000, notwithstanding any contrary provisions in this part, the frequency pairs 12.220/12.460 GHz, 12.260/12.500 GHz, 12.300/12.540 GHz and 12.340/12.580 GHz, were authorized for low power, limited coverage systems subject to the following provisions: (i) Maximum equivalent isotropically radiated power (EIRP) shall be 55 dBm; (ii) The rated transmitter output power shall not exceed 0.5 watts; (iii) Frequency tolerance shall be maintained to within 0.01 percent of the assigned frequency; (iv) Maximum beamwidth shall not exceed 4 degrees. However, the sidelobe suppression criteria contained in § 101.115 shall not apply, except that a minimum front-to-back ratio of 38 dB shall apply; (v) Upon showing of need, a maximum bandwidth of 12 MHz may be authorized per frequency assigned; (vi) Radio systems authorized under the provisions of this section shall have no more than three hops in tandem, except upon showing of need, but in any event the maximum tandem length shall not exceed 40 km (25 miles); (vii) Interfering signals at the receiver antenna terminals of stations authorized under this section shall not exceed −90 dBm and −70 dBm respectively, for co-channel and adjacent channel interfering signals, and (viii) Stations authorized under the provisions of this section shall provide the protection from interference specified in § 101.105 to stations operating in accordance with the provisions of this part. (r) In the bands 17,700 to 19,700 and 24,250 to 25,250 MHz: Operation of stations using frequencies in these bands is permitted to the extent specified in this paragraph (r). Licensees, except 24 GHz band licensees, may use either a two-way link or one frequency of a frequency pair for a one-way link and must coordinate proposed operations pursuant to the procedures required in § 101.103. The use of the band 18.3-19.3 GHz is limited to grandfathered stations. Licensees in the fixed-satellite service may require that licensees of grandfathered stations operating in the bands 18.3-19.3 GHz cease operations in accordance with the provisions in § 101.95. (Note that stations authorized as of September 9, 1983, to use frequencies in the band 17.7-19.7 GHz may, upon proper application, continue to be authorized for such operations, consistent with the above conditions in this paragraph (r) related to the 18.3-19.3 GHz band.) Applicants for one-way spectrum from 17.7-18.3 GHz for multichannel video programming distribution are governed by paragraph (r)(6) of this section. Licensees are also allowed to use one-way (unpaired) channels in the 17.7-17.74 GHz sub-band to pair with other channels in the FS portions of the 18 GHz band where, for example, the return pair is already in use and therefore blocked or in TDD systems. Stations used for MVPD operations in the 17.7-17.8 GHz band must coordinate with the Federal Government before operating in the zones specified in § 1.924(e) of this chapter. (1) 1.25 Megahertz maximum authorized bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 17700.625 NA 17701.875 NA 17703.125 NA 17704.375 NA 17705.625 NA 17706.875 NA 17708.125 NA 17709.375 NA 17710.625 NA 17711.875 NA 17713.125 NA 17714.375 NA 17715.625 NA 17716.875 NA 17718.125 NA 17719.375 NA 17721.625 NA 17722.875 NA 17723.125 NA 17724.375 NA 17725.625 NA 17726.875 NA 17728.125 NA 17729.375 NA 17730.625 NA 17731.875 NA 17733.125 NA 17734.375 NA 17735.625 NA 17736.875 NA 17738.125 NA 17739.375 NA 18060.625 19620.625 18061.875 19621.875 18063.125 19623.125 18064.375 19624.375 18065.625 19625.625 18066.875 19626.875 18068.125 19628.125 18069.375 19629.375 18070.625 19630.625 18071.875 19631.875 18073.125 19633.125 18074.375 19634.375 18075.625 19635.625 18076.875 19636.875 18078.125 19638.125 18079.375 19639.375 18080.625 19640.625 18081.875 19641.875 18083.125 19643.125 18084.375 19644.375 18085.625 19645.625 18086.875 19646.875 18088.125 19648.125 18089.375 19649.375 18090.625 19650.625 18091.875 19651.875 18093.125 19653.125 18094.375 19654.375 18095.625 19655.625 18096.875 19656.875 18098.125 19658.125 18099.375 19659.375 18100.625 19660.625 18101.875 19661.875 18103.125 19663.125 18104.375 19664.375 18105.625 19665.625 18106.875 19666.875 18108.125 19668.125 18109.375 19669.375 18110.625 19670.625 18111.875 19671.875 18113.125 19673.125 18114.375 19674.375 18115.625 19675.625 18116.875 19676.875 18118.125 19678.125 18119.375 19679.375 18120.625 19680.625 18121.875 19681.875 18123.125 19683.125 18124.375 19684.375 18125.625 19685.625 18126.875 19686.875 18128.125 19688.125 18129.375 19689.375 18130.625 19690.625 18131.875 19691.875 18133.125 19693.125 18134.375 19694.375 18135.625 19695.625 18136.875 19696.875 18138.125 19698.125 18139.375 19699.375 (2) 2 Megahertz maximum authorized bandwidth channel: Transmit (receive) (MHz) Receive (transmit) (MHz) 18141.0 N/A (3) 2.5 Megahertz maximum authorized bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 17701.25 N/A 17703.75 N/A 17706.25 N/A 17708.75 N/A 17711.25 N/A 17713.75 N/A 17716.25 N/A 17718.75 N/A 17721.25 N/A 17723.75 N/A 17726.25 N/A 17728.75 N/A 17731.25 N/A 17733.75 N/A 17736.25 N/A 17738.75 N/A 18061.25 19621.25 18063.75 19623.75 18066.25 19626.25 18068.75 19628.75 18071.25 19631.25 18073.75 19633.75 18076.25 19636.25 18078.75 19638.75 18081.25 19641.25 18083.75 19643.75 18086.25 19646.25 18088.75 19648.75 18091.25 19651.25 18093.75 19653.75 18096.25 19656.25 18098.75 19658.75 18101.25 19661.25 18103.75 19663.75 18106.25 19666.25 18108.75 19668.75 18111.25 19671.25 18113.75 19673.75 18116.25 19676.25 18118.75 19678.75 18121.25 19681.25 18123.75 19683.75 18126.25 19686.25 18128.75 19688.75 18131.25 19691.25 18133.75 19693.75 18136.25 19696.25 18138.75 19698.75 (4) [Reserved] (5) 5 Megahertz maximum authorized bandwidth channels: Transmit (receive) (MHz) Receive 1560 Megahertz Separation 17702.5 N/A 17707.5 N/A 17712.5 N/A 17717.5 N/A 17722.5 N/A 17727.5 N/A 17732.5 N/A 17737.5 N/A 18062.5 19622.5 18067.5 19627.5 18072.5 19632.5 18077.5 19637.5 18082.5 19642.5 18087.5 19647.5 18092.5 19652.5 18097.5 19657.5 18102.5 19662.5 18107.5 19667.5 18112.5 19672.5 18117.5 19677.5 18122.5 19682.5 18127.5 19687.5 18132.5 19692.5 18137.5 19697.5 (6) MVPD use: Multichannel video programming distributors (MVPDs) can use any size channels for one-way operations in the 17.7-18.58 GHz band for any permissible communications specified for this band in § 101.603 provided that they have coordinated the appropriate emission designators and power, but must request contiguous spectrum (minus spectrum that is already licensed or prior coordinated in the area and thus blocked). MVPD systems must meet the efficiency requirements of § 101.141. Spectrum at 18.3-18.58 GHz is only available for grandfathered stations. See § 101.85. (7) 10 Megahertz maximum authorized bandwidth channels: Table 7 to Paragraph ( r Transmit (receive) Receive (transmit) 1560 Megahertz Separation 17705.0 N/A 17715.0 N/A 17725.0 N/A 17735.0 N/A 17745.0 19305.0 17755.0 19315.0 17765.0 19325.0 17775.0 19335.0 17785.0 19345.0 17795.0 19355.0 17805.0 19365.0 17815.0 19375.0 17825.0 19385.0 17835.0 19395.0 17845.0 19405.0 17855.0 19415.0 17865.0 19425.0 17875.0 19435.0 17885.0 19445.0 17895.0 19455.0 17905.0 19465.0 17915.0 19475.0 17925.0 19485.0 17935.0 19495.0 17945.0 19505.0 17955.0 19515.0 17965.0 19525.0 17975.0 19535.0 17985.0 19545.0 17995.0 19555.0 18005.0 19565.0 18015.0 19575.0 18025.0 19585.0 18035.0 19595.0 18045.0 19605.0 18055.0 19615.0 18065.0 19625.0 18075.0 19635.0 18085.0 19645.0 18095.0 19655.0 18105.0 19665.0 18115.0 19675.0 18125.0 19685.0 18135.0 19695.0 (8) 20 Megahertz maximum authorized bandwidth channels: Table 8 to Paragraph ( r Transmit (receive) Receive (transmit) 1560 Megahertz Separation 17710.0 N/A 17730.0 N/A 17750.0 19310.0 17770.0 19330.0 17790.0 19350.0 17810.0 19370.0 17830.0 19390.0 17850.0 19410.0 17870.0 19430.0 17890.0 19450.0 17910.0 19470.0 17930.0 19490.0 17950.0 19510.0 17970.0 19530.0 17990.0 19550.0 18010.0 19570.0 18030.0 19590.0 18050.0 19610.0 18070.0 19630.0 18090.0 19650.0 18110.0 19670.0 18130.0 19690.0 (9) 30 Megahertz maximum authorized bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 1560 Megahertz Separation 17715.0 N/A 17755.0 19315.0 17785.0 19345.0 17815.0 19375.0 17845.0 19405.0 17875.0 19435.0 17905.0 19465.0 17935.0 19495.0 17965.0 19525.0 17995.0 19555.0 18025.0 19585.0 18055.0 19615.0 18085.0 19645.0 18115.0 19675.0 (10) 40 Megahertz maximum authorized bandwidth channels: Table 10 to Paragraph ( r Transmit (receive) Receive (transmit) 1560 Megahertz Separation 17720.0 N/A 17760.0 19320.0 17800.0 19360.0 17840.0 19400.0 17880.0 19440.0 17920.0 19480.0 17960.0 19520.0 18000.0 19560.0 18040.0 19600.0 18080.0 19640.0 18120.0 19680.0 (11) 50 Megahertz maximum authorized bandwidth channels: Transmit (receive) (MHz) Receive (transmit) (MHz) 1560 Megahertz Separation 17765.0 19325.0 17815.0 19375.0 17865.0 19425.0 17915.0 19475.0 17965.0 19525.0 18015.0 19575.0 18065.0 19625.0 18115.0 19675.0 (12) 80 Megahertz maximum authorized bandwidth channels: Table 12 to Paragraph ( r Transmit (receive) Receive (transmit) 1560 Megahertz Separation 17740.0 N/A 17820.0 19380.0 17900.0 19460.0 17980.0 19540.0 18060.0 19620.0 (13) The frequencies on channels 35-39 listed in Table 13 are available for point-to-multipoint systems and are available by geographic area licensing in the 24 GHz Service to be used by the relevant licensee. The 24 GHz spectrum can be aggregated or disaggregated and does not have to be used in the transmit/receive manner shown except to comply with international agreements along the U.S. borders. Channels 35 through 39 are licensed in the 24 GHz Service by Economic Areas for any digital fixed service. Channels may be used at either nodal or subscriber station locations for transmit or receive but must be coordinated with adjacent channel and adjacent area users in accordance with the provisions of § 101.509. Stations also must comply with all applicable international coordination agreements. Table 13 to Paragraph ( r Channel No. Nodal station User station 35 24,250-24,290 25,050-25,090 36 24,290-24,330 25,090-25,130 37 24,330-24,370 25,130-25,170 38 24,370-24,410 25,170-25,210 39 24,410-24,450 25,210-25,250 (14) Special provision for low power systems in the 17,700-19,700 MHz band: (i) Power must not exceed one watt EIRP and 100 milliwatts transmitter output power; (ii) A frequency tolerance of 0.001% must be maintained; and (iii) The mean power of emissions shall be attenuated in accordance with the following schedule: (A) In any 4 kHz band, the center frequency of which is removed from the center frequency of the assigned channel by more than 50 percent of the channel bandwidth and is within the bands 18,820-18,870 MHz or 19,160-19,210 MHz: A = 35 + .003 (F−0.5B) dB or, 80 dB (whichever is the lesser attenuation). Where: A = Attenuation (in decibels) below output power level contained within the channel for a given polarization. B = Bandwidth of channel in kHz. F = Absolute value of the difference between the center frequency of the 4 kHz band measured at the center frequency of the channel in kHz. (B) In any 4 kHz band the center frequency of which is outside the bands 18.820-18.870 GHz: At least 43 + 10 log P (mean output power in watts) decibels. (iv) Low power stations authorized in the band 18.8-19.3 GHz after June 8, 2000, are restricted to indoor use only. No new licenses will be authorized for applications received after April 1, 2002. (s) 21,200 to 23,600 MHz: Transmit (receive) (MHz) Receive (transmit) (1) 2.5 MHz bandwidth channels: 21601.25 22801.25 21603.75 22803.75 21606.25 22806.25 21608.75 22808.75 21611.25 22811.25 21613.75 22813.75 21616.25 22816.25 21618.75 22818.75 21621.25 22821.25 21623.75 22823.75 21626.25 22826.25 21628.75 22828.75 21631.25 22831.25 21633.75 22833.75 21636.25 22836.25 21638.75 22838.75 21641.25 22841.25 21643.75 22843.75 21646.25 22846.25 21648.75 22848.75 21651.25 22851.25 21653.75 22853.75 21656.25 22856.25 21658.75 22858.75 21661.25 22861.25 21663.75 22863.75 21666.25 22866.25 21668.75 22868.75 21671.25 22871.25 21673.75 22873.75 21676.25 22876.25 21678.75 22878.75 21681.25 22881.25 21683.75 22883.75 21686.25 22886.25 21688.75 22888.75 21691.25 22891.25 21693.75 22893.75 21696.25 22896.25 21698.75 22898.75 21701.25 22901.25 21703.75 22903.75 21706.25 22906.25 21708.75 22908.75 21711.25 22911.25 21713.75 22913.75 21716.25 22916.25 21718.75 22918.75 21721.25 22921.25 21723.75 22923.75 21726.25 22926.25 21728.75 22928.75 21731.25 22931.25 21733.75 22933.75 21736.25 22936.25 21738.75 22938.75 21741.25 22941.25 21743.75 22943.75 21746.25 22946.25 21748.75 22948.75 21751.25 22951.25 21753.75 22953.75 21756.25 22956.25 21758.75 22958.75 21761.25 22961.25 21763.75 22963.75 21766.25 22966.25 21768.75 22968.75 21771.25 22971.25 21773.75 22973.75 21776.25 22976.25 21778.75 22978.75 21781.25 22981.25 21783.75 22983.75 21786.25 22986.25 21788.75 22988.75 21791.25 22991.25 21793.75 22993.75 21796.25 22996.25 21798.75 22998.75 22301.25 23501.25 22303.75 23503.75 22306.25 23506.25 22308.75 23508.75 22311.25 23511.25 22313.75 23513.75 22316.25 23516.25 22318.75 23518.75 22321.25 23521.25 22323.75 23523.75 22326.25 23526.25 22328.75 23528.75 22331.25 23531.25 22333.75 23533.75 22336.25 23536.25 22338.75 23538.75 22341.25 23541.25 22343.75 23543.75 22346.25 23546.25 22348.75 23548.75 22351.25 23551.25 22353.75 23553.75 22356.25 23556.25 22358.75 23558.75 22361.25 23561.25 22363.75 23563.75 22366.25 23566.25 22368.75 23568.75 22371.25 23571.25 22373.75 23573.75 22376.25 23576.25 22378.75 23578.75 22381.25 23581.25 22383.75 23583.75 22386.25 23586.25 22388.75 23588.75 22391.25 23591.25 22393.75 23593.75 22396.25 23596.25 22398.75 23598.75 (2) 5 MHz bandwidth channels: 21602.5 22802.5 21607.5 22807.5 21612.5 22812.5 21617.5 22817.5 21622.5 22822.5 21627.5 22827.5 21632.5 22832.5 21637.5 22837.5 21642.5 22842.5 21647.5 22847.5 21652.5 22852.5 21657.5 22857.5 21662.5 22862.5 21667.5 22867.5 21672.5 22872.5 21677.5 22877.5 21682.5 22882.5 21687.5 22887.5 21692.5 22892.5 21697.5 22897.5 21702.5 22902.5 21707.5 22907.5 21712.5 22912.5 21717.5 22917.5 21722.5 22922.5 21727.5 22927.5 21732.5 22932.5 21737.5 22937.5 21742.5 22942.5 21747.5 22947.5 21752.5 22952.5 21757.5 22957.5 21762.5 22962.5 21767.5 22967.5 21772.5 22972.5 21777.5 22977.5 21782.5 22982.5 21787.5 22987.5 21792.5 22992.5 21797.5 22997.5 22302.5 23502.5 22307.5 23507.5 22312.5 23512.5 22317.5 23517.5 22322.5 23522.5 22327.5 23527.5 22332.5 23532.5 22337.5 23537.5 22342.5 23542.5 22347.5 23547.5 22352.5 23552.5 22357.5 23557.5 22362.5 23562.5 22367.5 23567.5 22372.5 23572.5 22377.5 23577.5 22382.5 23582.5 22387.5 23587.5 22392.5 23592.5 22397.5 23597.5 (3) 10 MHz bandwidth channels: 21205 22405 21215 22415 21225 22425 21235 22435 21245 22445 21255 22455 21265 22465 21275 22475 21285 22485 21295 22495 21305 22505 21315 22515 21325 22525 21335 22535 21345 22545 21355 22555 21365 22565 21375 22575 21385 22585 21395 22595 21405 22605 21415 22615 21425 22625 21435 22635 21445 22645 21455 22655 21465 22665 21475 22675 21485 22685 21495 22695 21505 22705 21515 22715 21525 22725 21535 22735 21545 22745 21555 22755 21565 22765 21575 22775 21585 22785 21595 22795 21605 1 1 21615 1 1 21625 1 1 21635 1 1 21645 1 1 21655 1 1 21665 1 1 21675 1 1 21685 1 1 21695 1 1 21705 1 1 21715 1 1 21725 1 1 21735 1 1 21745 1 1 21755 1 1 21765 1 1 21775 1 1 21785 1 1 21795 1 1 21805 2 2 21815 2 2 21825 2 2 21835 2 2 21845 2 2 21855 2 2 21865 2 2 21875 2 2 21885 2 2 21895 2 2 21905 2 2 21915 2 2 21925 2 2 21935 2 2 21945 2 2 21955 2 2 21965 2 2 21975 2 2 21985 2 2 21995 2 2 22005 23205 22015 23215 22025 2 23225 2 22035 23235 22045 23245 22055 23255 22065 23265 22075 2 23275 2 22085 23285 22095 23295 22105 23305 22115 23315 22125 23325 22135 23335 22145 23345 22155 23355 22165 23365 22175 23375 22185 23385 22195 23395 22205 23405 22215 23415 22225 23425 22235 23435 22245 23445 22255 23455 22265 23465 22275 23475 22285 23485 22295 23495 22305 1 1 22315 1 1 22325 1 1 22335 1 1 22345 1 1 22355 1 1 22365 1 1 22375 1 1 22385 1 1 22395 1 1 (4) 20 MHz bandwidth channels: 21210 22410 21230 22430 21260 22460 21280 22480 21310 22510 21330 22530 21360 22560 21380 22580 21410 22610 21430 22630 21460 22660 21480 22680 21510 22710 21530 22730 21560 22760 21580 22780 21610 1 1 21630 1 1 21660 1 1 21680 1 1 21710 1 1 21730 1 1 21760 1 1 21780 1 1 21810 2 2 21830 2 2 21860 2 2 21880 2 2 21910 2 2 21930 2 2 21960 2 2 21980 2 2 22010 23210 22030 23230 22060 23260 22080 23280 22110 23310 22130 23330 22160 23360 22180 23380 22210 23410 22230 23430 22260 23460 22280 23480 22310 1 1 22330 1 1 22360 1 1 22380 1 1 (5) 30 MHz bandwidth channels: 21235 22435 21285 22485 21335 22535 21385 22585 21435 22635 21485 22685 21535 22735 21585 22785 21635 1 1 21685 1 1 21735 1 1 21785 1 1 21835 2 2 21885 2 2 21935 2 2 21985 2 2 22035 23235 22085 23285 22135 23335 22185 23385 22235 23435 22285 23485 22335 1 1 22385 1 1 (6) 40 MHz bandwidth channels: 21220 22420 21270 22470 21320 22520 21370 22570 21420 22620 21470 22670 21520 22720 21570 22770 21620 1 1 21670 1 1 21720 1 1 21770 1 1 21820 2 2 21870 2 2 21920 2 2 21970 2 2 22020 23220 22070 23270 22120 23320 22170 23370 22220 23420 22270 23470 22320 1 1 22370 1 1 (7) 50 MHz bandwidth channels: 21225 22425 21275 22475 21325 22525 21375 22575 21425 22625 21475 22675 21525 22725 21575 22775 21625 1 1 21675 1 1 21725 1 1 21775 1 1 21825 2 2 21875 2 2 21925 2 2 21975 2 2 22025 2 23225 2 22075 2 23275 2 22125 23325 22175 23375 22225 23425 22275 23475 22325 1 1 22375 1 1 1 2 (8) Special provisions for low power, limited coverage systems in the 21.8-22.0 GHz and 23.0-23.2 GHz band segments. (i) The maximum EIRP shall be 55 dBm and the rated transmitter output power shall not exceed 0.100 Watts; (ii) In the band segments from 21.8-22.0 GHz and 23.0-23.2 GHz, the frequency tolerance for stations authorized on or before April 1, 2005 is 0.05%. Existing licensees and pending applicants on that date may continue to operate after that date with a frequency tolerance of 0.05%, provided that it does not cause harmful interference to the operation of any other licensee. The frequency tolerance of § 101.107(a) shall apply to stations applied for after April 1, 2005; (iii) The maximum beamwidth shall not exceed 4 degrees; (iv) The sidelobe suppression criteria contained in § 101.115 of this part shall not apply, except that a minimum front-to-back ratio of 38 dB shall apply; (v) Upon showing of need, a maximum bandwidth of 50 MHz may be authorized per frequency assigned; (vi) Radio systems authorized under the provisions of this section shall have no more than five hops in tandem, except upon showing of need, but in any event the maximum tandem length shall not exceed 40 km (25 miles); (vii) Interfering signals at the antenna terminals of station authorized under this section shall not exceed −90 dBm and −70 dBm respectively, for co-channel and adjacent channel interfering signals; and (viii) Stations authorized under the provisions of this section shall provide the protection from interference specified in § 101.105 to stations operating in accordance with the provisions of this part. (t) 29,100-29,250; 31,000-31,300 MHz. (u) 31,000-31,300 MHz. Transmit (receive) (MHz) Receive (transmit) (MHz) (1) 25 MHz Authorized Bandwidth Channels 31,012.5 31,237.5 31,037.5 31,262.5 31,062.5 31,287.5 (2) 75 MHz Authorized Bandwidth Channel 31,037.5 31,275.0 Note to ( u These channels are assigned for use within a rectangular service area to be described in the application by the maximum and minimum latitudes and longitudes. Such service area must be as small as practical consistent with the local service requirements of the carrier. These frequency plans may be subdivided as desired by the licensee and used within the service area as desired without further authorization subject to the terms and conditions set forth in § 101.149. These frequencies may be assigned only where it is shown that the applicant will have reasonable projected requirements for a multiplicity of service points or transmission paths within the area. (v) [Reserved] (w) Fixed systems licensed, in operation, or applied for in the 3,700-4,200, 5925-6425, 6,525-6,875, 10,550-10,680, and 10,700-11,700 MHz bands prior to July 15, 1993, are permitted to use channel plans in effect prior to that date, including adding channels under those plans. (x) Operations on other than the listed frequencies may be authorized where it is shown that the objectives or requirements of the interference criteria prescribed in § 101.105 could not otherwise be met to resolve the interference problems. (y) Special requirements for operations in the band 29.1-29.25 GHz. (ii) LMDS licensees operating on frequencies in the 29.1-29.25 GHz band outside a feeder link earth station complex protection zone shall cooperate fully and make reasonable efforts to resolve technical problems with the non-GSO MSS licensee to the extent that transmissions from the non-GSO MSS operator's feeder link earth station complex interfere with an LMDS receive station. (2) No more than 15 days after the release of a public notice announcing the commencement of LMDS auctions, feeder link earth station complexes to be licensed pursuant to Section 25.257 shall be specified by a set of geographic coordinates in accordance with the following requirements: no feeder link earth station complex may be located in the top eight (8) metropolitan statistical areas (“MSAs”), ranked by population, as defined by the Office of Management and Budget as of June 1993, using estimated populations as of December 1992; two (2) complexes may be located in MSAs 9 through 25, one of which must be Phoenix, AZ (for a complex at Chandler, AZ); two (2) complexes may be located in MSAs 26 to 50; three (3) complexes may be located in MSAs 51 to 100, one of which must be Honolulu, Hawaii (for a complex at Waimea); and the three (3) remaining complexes must be located at least 75 nautical miles from the borders of the 100 largest MSAs or in any MSA not included in the 100 largest MSAs. Any location allotted for one range of MSAs may be taken from an MSA below that range. (3)(i) Any non-GSO MSS licensee may at any time specify sets of geographic coordinates for feeder link earth station complexes with each earth station contained therein to be located at least 75 nautical miles from the borders of the 100 largest MSAs. (ii) For purposes of paragraph (c)(3)(i) of this section, non-GSO MSS feeder link earth station complexes shall be entitled to accommodation only if the affected non-GSO MSS licensee preapplies to the Commission for a feeder link earth station complex or certifies to the Commission within sixty days of receiving a copy of an LMDS application that it intends to file an application for a feeder link earth station complex within six months of the date of receipt of the LMDS application. (iii) If said non-GSO MSS licensee application is filed later than six months after certification to the Commission, the LMDS and non-GSO MSS entities shall still cooperate fully and make reasonable efforts to resolve technical problems, but the LMDS licensee shall not be obligated to re-engineer its proposal or make changes to its system. (4) LMDS licensees or applicants proposing to operate hub stations on frequencies in the 29.1-29.25 GHz band at locations outside of the 100 largest MSAs or within a distance of 150 nautical miles from a set of geographic coordinates specified under paragraph (c)(2) or (c)(3)(i) of this section shall serve copies of their applications on all non-GSO MSS applicants, permitees or licensees meeting the criteria specified in § 25.257(a). Non-GSO MSS licensees or applicants shall serve copies of their feeder link earth station applications, after the LMDS auction, on any LMDS applicant or licensee within a distance of 150 nautical miles from the geographic coordinates that it specified under paragraph (c)(2) or (c)(3)(i) of this section. Any necessary coordination shall commence upon notification by the party receiving an application to the party who filed the application. The results of any such coordination shall be reported to the Commission within sixty days. The non-GSO MSS earth station licensee shall also provide all such LMDS licensees with a copy of its channel plan. (z) 71,000-76,000 MHz; 81,000-86,000 MHz; 92,000-94,000 MHz; 94,100-95,000 MHz. See (2) Prior links shall be protected using the interference protection criteria set forth in section 101.105. For transmitters employing digital modulation techniques and operating in the 71,000-76,000 MHz or 81,000-86,000 MHz bands, the licensee must construct a system that meets a minimum bit rate of 0.125 bits per second per Hertz of bandwidth. For transmitters that operate in the 92,000-94,000 MHz or 94,100-95,000 MHz bands, licensees must construct a system that meets a minimum bit rate of 1.0 bit per second per Hertz of bandwidth. If it is determined that a licensee has not met these loading requirements, then the database will be modified to limit coordination rights to the spectrum that is loaded and the licensee will lose protection rights on spectrum that has not been loaded. (3) The following channel plans apply to the 71,000-76,000 MHz and 81,000-86,000 MHz bands: (i) 250 MHz authorized bandwidth. Transmit Receive 71250 81250 71500 81500 71750 81750 72000 82000 72250 82250 72500 82500 72750 82750 73000 83000 73250 83250 73500 83500 73750 83750 74000 84000 74250 84250 74500 84500 74750 84750 75000 85000 75250 85250 75500 85500 75750 85750 (ii) 500 MHz authorized bandwidth. Transmit Receive 71375 81375 71875 81875 72375 82375 72875 82875 73375 83375 73875 83875 74375 84375 74875 84875 75375 85375 (iii) 750 MHz authorized bandwidth. Transmit Receive 71500 81500 72250 82250 73000 83000 73750 83750 74500 84500 75250 85250 (iv) 1 GHz authorized bandwidth. Transmit Receive 71625 81625 72625 82625 74125 84125 75125 85125 (v) 1.25 GHz authorized bandwidth. Transmit Receive 71750 81750 73000 83000 74250 84250 (vi) 1.5 GHz authorized bandwidth. Transmit Receive 71875 81875 74375 84375 (vii) 1.75 GHz authorized bandwidth. Transmit Receive 72000 82000 74500 84500 (viii) 2.0 GHz authorized bandwidth. Transmit Receive 72125 82125 74625 84625 (ix) 2.25 GHz authorized bandwidth. Transmit Receive 72250 82250 74750 84750 (x) 2.5 GHz authorized bandwidth. Transmit Receive 72375 82375 (xi) 2.75 GHz authorized bandwidth. Transmit Receive 72500 82500 (xii) 3 GHz authorized bandwidth. Transmit Receive 72625 82625 (xiii) 3.25 GHz authorized bandwidth. Transmit Receive 72750 82750 (xiv) 3.5 GHz authorized bandwidth. Transmit Receive 72875 82875 (xv) 3.75 GHz authorized bandwidth. Transmit Receive 73000 83000 (xvi) 4 GHz authorized bandwidth. Transmit Receive 73125 83125 (xvii) 4.25 GHz authorized bandwidth. Transmit Receive 73250 83250 (xviii) 4.5 GHz authorized bandwidth. Transmit Receive 73375 83375 [61 FR 26677, May 28, 1996] Editorial Note: For Federal Register www.govinfo.gov. § 101.149 [Reserved] § 101.151 Use of signal boosters. Private operational-fixed licensees authorized to operate multiple address systems in the 928-929/952-960 MHz and 932-932.5/941-941.5 MHz bands may employ signal boosters at fixed locations in accordance with the following criteria: (a) The amplified signal is retransmitted only on the exact frequency(ies) of the originating base, fixed, mobile, or portable station(s). The booster will fill in only weak signal areas and cannot extend the system's normal signal coverage area. (b) Class A narrowband signal boosters must be equipped with automatic gain control circuitry which will limit the total effective radiated power (ERP) of the unit to a maximum of 5 watts under all conditions. Class B broadband signal boosters are limited to 5 watts ERP for each authorized frequency that the booster is designed to amplify. (c) Class A narrowband boosters must meet the out-of-band emission limits of § 101.111 for each narrowband channel that the booster is designed to amplify. Class B broadband signal boosters must meet the emission limits of § 101.111 for frequencies outside of the booster's design passband. (d) Class B broadband signal boosters are permitted to be used only in confined or indoor areas such as buildings, tunnels, underground areas, etc., or remote areas, i.e., (e) The licensee is given authority to operate signal boosters without separate authorization from the Commission. Certificated equipment must be employed and the licensee must ensure that all applicable rule requirements are met. (f) Licensees employing either Class A narrowband or Class B broadband signal boosters as defined in § 101.3 are responsible for correcting any harmful interference that the equipment may cause to other systems. [61 FR 31052, June 19, 1996, as amended at 63 FR 36611, July 7, 1998] Subpart D—Operational Requirements § 101.201 Station inspection. The licensee of each station authorized in the radio services included in this part must make the station available for inspection by representatives of the Commission at any reasonable hour. § 101.203 Communications concerning safety of life and property. (a) Handling and transmission of messages concerning the safety of life or property which is in imminent danger must be afforded priority over other messages. (b) No person may knowingly cause to be transmitted any false or fraudulent message concerning the safety of life or property, or refuse upon demand immediately to relinquish the use of a radio circuit to enable the transmission of messages concerning the safety of life or property which is in imminent danger, or knowingly interfere or otherwise obstruct the transmission of such messages. § 101.205 Operation during emergency. The licensee of any station in these services may, during a period of emergency in which normal communication facilities are disrupted as a result of hurricane, flood, earthquake, or similar disaster, utilize such station for emergency communication service in a manner other than that specified in the instrument of authorization: Provided: (a) That as soon as possible after the beginning of such emergency use, notice be sent to the Commission stating the nature of the emergency and the use to which the station is being put; (b) That the emergency use of the station must be discontinued as soon as substantially normal communication facilities are again available; (c) That the Commission must be notified immediately when such special use of the station is terminated; (d) That, in no event, will any station engage in emergency transmission on frequencies other than, or with power in excess of, that specified in the instrument of authorization or as otherwise expressly provided by the Commission, or by law; and (e) That the Commission may, at any time, order the discontinuance of any such emergency communication. [61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998] § 101.207 Suspension of transmission. Transmission must be suspended immediately upon detection by the station or operator licensee or upon notification by the Commission of a deviation from the technical requirements of the station authorization and must remain suspended until such deviation is corrected, except for transmission concerning the immediate safety of life or property, in which case transmission must be suspended immediately after the emergency is terminated. § 101.209 Operation of stations at temporary fixed locations for communication between the United States and Canada or Mexico. Stations authorized to operate at temporary fixed locations may not be used for transmissions between the United States and Canada, or the United States and Mexico, without prior specific notification to, and authorization from, the Commission. Notification of such intended usage of the facilities should include a detailed showing of the operation proposed, including the parties involved, the nature of the communications to be handled, the terms and conditions of such operations, the time and place of operation, such other matters as the applicant deems relevant, and a showing as to how the public interest, convenience and necessity would be served by the proposed operation. Such notification should be given sufficiently in advance of the proposed date of operation to permit any appropriate correlation with the respective foreign government involved (see §§ 101.31, 101.811, 101.813, and 101.815). § 101.211 [Reserved] § 101.213 Station identification. Stations in these services are exempt from the requirement to identify transmissions by call sign or any other station identifier. § 101.215 Posting of station authorization and transmitter identification cards, plates, or signs. (a) Each licensee shall post at the station the name, address and telephone number of the custodian of the station license or other authorization if such license or authorization is not maintained at the station. (b) The requirements in paragraph (a) of this section do not apply to remote stations using frequencies listed in § 101.147(b). § 101.217 Station records. Each licensee of a station subject to this part shall maintain records in accordance with the following: (a) For all stations, the results and dates of transmitter measurements and the name of the person or persons making the measurements; (b) For all stations, when service or maintenance duties are performed, which may affect their proper operation, the responsible operator shall sign and date an entry in the station record concerned, giving: (1) Pertinent details of all transmitter adjustments performed by him or under his supervision; and (2) His name and address, provided that this information, so long as it remains unchanged, is not required to be repeated in the case of a person who is regularly employed as operator on a full-time basis at the station. (c) The records shall be kept in an orderly manner, and in such detail that the data required are readily available. Key letters or abbreviations may be used if proper meaning or explanation is set forth in the record. (d) Each entry in the records of each station shall be signed by a person qualified to do so, having actual knowledge of the facts to be recorded. (e) No record or portion thereof shall be erased, obliterated, or willfully destroyed within the required retention period. Any necessary correction may be made only by the person originating the entry, who shall strike out the erroneous portion, initial the correction made and indicate the date of correction. (f) Records required by this part shall be retained by the licensee for a period of at least one year. Subpart E—Miscellaneous Common Carrier Provisions § 101.301 National defense; free service. Any common carrier authorized under the rules of this part may render to any agency of the United States Government free service in connection with the preparation for the national defense. Every such carrier rendering any such free service must make and file, in duplicate, with the Commission, on or before the 31st of July and on or before the 31st day of January in each year, reports covering the periods of 6 months ending on the 30th of June and the 31st of December, respectively, next prior to said dates. These reports must show the names of the agencies to which free service was rendered pursuant to this rule, the general character of the communications handled for each agency, and the charges in dollars which would have accrued to the carrier for such service rendered to each agency if charges for such communications had been collected at the published tariff rates. § 101.303 [Reserved] § 101.305 Discontinuance, reduction or impairment of service. (a) If the public communication service provided by a station in the Common Carrier Radio Services, the Local Multipoint Distribution Service or 24 GHz Service is involuntarily discontinued, reduced or impaired for a period exceeding 48 hours, the station licensee must promptly notify the Commission. In every such case, the licensee must furnish full particulars as to the reasons for such discontinuance, reduction or impairment of service, including a statement as to when normal service is expected to be resumed. When normal service is resumed, prompt notification thereof must be given Commission. (b) No station licensee subject to title II of the Communications Act of 1934, as amended, may voluntarily discontinue, reduce or impair public communication service to a community or part of a community without obtaining prior authorization from the Commission pursuant to the procedures set forth in part 63 of this chapter. In the event that permanent discontinuance of service is authorized by the Commission, the station license is terminated; except that station licenses in the Local Multipoint Distribution Service and 24 GHz Service are not terminated if the discontinuance is a result of a change of status by the licensee from common carrier to non-common carrier pursuant to § 1.929 of this chapter. (c) Any licensee not subject to title II of the Communications Act of 1934, as amended, who voluntarily discontinues, reduces or impairs public communication service to a community or a part of a community must notify the Commission within 7 days thereof. In the event of permanent discontinuance of service, the station license is automatically terminated; except that station licenses in the Local Multipoint Distribution Service and 24 GHz Service are not terminated if the discontinuance is a result of a change of status by the licensee from non-common carrier to common carrier pursuant to § 1.929 of this chapter. (d) If any common carrier radio frequency should not be used to render any service as authorized during a consecutive period of twelve months at any time after construction is completed under circumstances that do not fall within the provisions of paragraph (a), (b), or (c) of this section, or, if removal of equipment or facilities has rendered the station not operational, the licensee must, within thirty days of the end of such period of nonuse: (1) Cancel the station license (or licenses); or (2) File an application for modification of the license (or licenses) to delete the unused frequency (or frequencies); or (3) Request waiver of this rule and demonstrate either that the frequency will be used (as evidenced by appropriate requests for service, etc.) within six months of the end of the initial period of nonuse, or that the frequency will be converted to allow rendition of other authorized public services within one year of the end of the initial period of nonuse by the filing of appropriate applications within six months of the end of the period of nonuse. [61 FR 26677, May 28, 1996, as amended at 62 FR 23168, Apr. 29, 1997; 63 FR 68983, Dec. 14, 1998; 65 FR 59359, Oct. 5, 2000] §§ 101.307-101.311 [Reserved] Subparts F-G [Reserved] Subpart H—Private Operational Fixed Point-to-Point Microwave Service § 101.601 Eligibility. Any person, or any governmental entity or agency, eligible for licensing in a radio service or pool under part 80, 87, or 90 of this chapter or any person proposing to provide communications service to such persons, governmental entities or agencies is eligible to hold a license under this subpart. This subpart shall not apply to stations offering MVDDS in the 12.2-12.7 GHz band. [62 FR 18936, Apr. 17, 1997, as amended at 67 FR 43040, June 26, 2002] § 101.603 Permissible communications. (a) Except as provided in paragraph (b) of this section, stations in this radio service may transmit communications as follows: (1) On frequencies below 21,200 MHz, licensees may transmit their own communications, including the transmission of their products and information services, to their customers except that the distribution of video entertainment material to customers is permitted only as indicated in § 101.101 and paragraph (a)(2) of this section. (2) In the frequency bands 6425-6525 MHz, 17,700-18,580 MHz, and on frequencies above 21,200 MHz, licensees may deliver any of their own products and services to any receiving location; (3) Licensees may transmit the communications of their parent corporation, or of another subsidiary of the same parent, or their own subsidiary where the party to be served is regularly engaged in any of the activities that constitute the basis for eligibility to use the frequencies assigned; (4) Licensees may transmit the communications of other parties in accordance with § 101.135; (5) Licensees may transmit emergency communications unrelated to their activities in accordance with § 101.205; (6) Licensees may transmit communications on a commercial basis to eligible users, among different premises of a single eligible user, or from one eligible user to another as part of transmissions by Digital Electronic Message Service systems on the frequencies provided for this purpose; (7) Licensees may transmit program material from one location to another; (b) Stations licensed in this radio service shall not: (1) Render a common carrier service of any kind. However, licensees are allowed to lease excess capacity to common carriers. In addition, Specialized Mobile Radio (SMR) licensees reclassified by the Commission as Commercial Mobile Radio Services (CMRS), that were formerly private land mobile radio service providers, may continue to utilize private operational fixed microwave systems licensed prior to April 1, 2003 for their land mobile connecting facilities. (2) Transmit program material for use in connection with broadcasting, except as provided in paragraphs (a)(2), and (a)(7)) of this section; and/or (3) Be used to provide the final RF link in the chain of transmission of program material to multichannel video programming distributors, except in the frequency bands 6425-6525 MHz and 17,700-18,580 MHz and on frequencies above 21,200 MHz. [61 FR 26677, May 28, 1996, as amended at 68 FR 4961, Jan. 31, 2003; 71 FR 69052, Nov. 29, 2006; 76 FR 59574, Sept. 27, 2011] Subpart I—Common Carrier Fixed Point-to-Point Microwave Service § 101.701 Eligibility. (a) Authorizations for stations in this service will be issued to existing and proposed common carriers. Applications will be granted only in cases in which it is shown that: (1) The applicant is legally, technically, financially and otherwise qualified to render the proposed service; (2) There are frequencies available to enable the applicant to render a satisfactory service; and (3) The public interest, convenience, and necessity would be served by a grant thereof. (b) If the content is originated, selected, controlled, or otherwise substantively influenced by the applicant, licensee, or a closely affiliated entity, no station or radio frequency in this service will be authorized, or may be utilized, to transmit any closed circuit television signals or television signals other than broadcast television signals, unless: (1) Such service is otherwise permitted for a specific length of time by grant of an acceptable petition for waiver of this rule; or (2) Such service is otherwise permitted by a condition in the applicable instrument of authorization; or (3) Such service is provided pursuant to applicable FCC tariff and is temporary and occasional intra-company television communication for management, network supervision, or other internal carrier functions. For purposes of this paragraph, an entity will be considered to be “closely affiliated” with an applicant if it is in a parent-subsidiary relationship, or both are commonly controlled, or they have any common officers or management employees. (c) Applications for stations or frequencies that will be used primarily to relay broadcast television signals must include a certification that at least fifty percent of the customers (or points of service) on the microwave system involved, including those served through an interconnecting carrier(s), receiving applicant's service, will not be related or affiliated in any degree with the applicant, and that the proposed usage by such customers, in terms of hours of use and channels delivered, must constitute at least fifty percent of the usage of the applicant's microwave service. Applications that do not contain these certifications will be returned as unacceptable for filing. [61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998] § 101.703 Permissible communications. Stations in this service are authorized to render any kind of communication service provided for in the legally applicable tariffs of the carrier, unless otherwise directed in the applicable instrument of authorization or limited by § 101.147 or §§ 101.111 and 101.113. § 101.705 [Reserved] Subpart J—Local Television Transmission Service § 101.801 Eligibility. Authorizations for stations in this service will be granted to existing and proposed communication common carriers. Applications will be granted only in cases where it is shown that: (a) The applicant is legally, financially, technically and otherwise qualified to render the proposed service; (b) There are frequencies available to enable the applicant to render a satisfactory service; and (c) The public interest, convenience or necessity would be served by a grant thereof. § 101.803 Frequencies. (a) Frequencies in the following bands are available for assignment to television pickup and television non-broadcast pickup stations in this service: 6,425 to 6,525 MHz. (6) 11,700 to 12,200 MHz. (3) 13,200 to 13,250 MHz. (1) 14,200 to 14,400 MHz. (8) 21,200 to 22,000 MHz. (1), (2), (4), (5) 22,000 to 23,600 MHz. (1), (2), (5) 31,000 to 31,300 MHz. (7) Notes (1) This frequency band is shared with fixed and mobile stations licensed under this and other parts of the Commission's Rules. (2) This frequency band is shared with Government stations. (3) This frequency band is shared, on a secondary basis, with stations in the broadcasting-satellite and fixed-satellite services. As of March 1, 2005, no new LTTS operators will be licensed in the 11.7-12.2 GHz band. LTTS operators authorized prior to March 1, 2005 may continue to operate in 11.7-12.2 GHz band until their license expires; no existing LTTS licenses will be renewed in the 11.7-12.2 GHz band. (4) This frequency band is shared with stations in the earth-exploration satellite service. (5) This frequency band is shared with the common carrier and private-operational fixed point-to-point microwave services. (6) This band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of this chapter, and subpart H of this part. (7) As of June 30, 1997, frequencies in this band only are available for assignment to LMDS radio stations, except for non-LMDS radio stations authorized pursuant to applications refiled no later than June 26, 1998. Stations authorized prior to June 30, 1997, may continue to operate within the existing terms of the outstanding licenses, subject to renewal. Non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998 shall operate on an unprotected basis and subject to harmful interference from similarly licensed stations or stations licensed prior to June 30, 1997, and on a secondary basis to LMDS radio stations. (8) The maximum power for the local television transmission service in the 14.2-14.4 GHz band is + 45 dBW except that operations are not permitted within 1.5 degrees of the geostationary orbit. As of March 1, 2005, no new LTTS operators will be licensed in the 14.2-14.4 GHz band. LTTS operators authorized prior to March 1, 2005 may continue to operate in 14.2-14.4 GHz band until their license expires; no existing LTTS licenses will be renewed in the 11.7-12.2 GHz band. (b) Communications common carriers in the Local Television Transmission Service may be assigned frequencies listed in §§ 74.602(a), 78.18(a)(6), and 78.18(a)(7) of this chapter to provide service to television broadcast stations, television broadcast network-entities, cable system operators, and cable network-entities. Frequency availability is subject to the provisions of § 74.604 of this chapter and the use of the facility is limited to the permissible uses described in §§ 74.631 and 78.11 of this chapter. Operations on these frequencies are subject to the technical provisions of part 74, subpart F, and part 78, subpart D of this chapter. (c) [Reserved] (d) Frequencies in the following bands are available for assignment to television STL stations in this service: 3,700 to 4,200 MHz (1) 5,925 to 6,425 MHz (1),(5) 10,700 to 11,700 MHz (1),(6) 11,700 to 12,100 MHz (3) 13,200 to 13,250 MHz (2) 21,200 to 22,000 MHz (2),(4),(7),(8) 22,000 to 23,600 MHz (2),(6),(8) 31,000 to 31,300 MHz (9) Notes (1) This frequency band is shared with stations in the Point to Point Microwave Radio Service and, in United States Possessions in the Caribbean area, with stations in the International Fixed Radiocommunications Services. For 3,700-4,200 MHz frequencies are only available for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. In the contiguous United States, licensees of existing licenses, as of April 19, 2018, for permanent point-to-point Fixed Service links have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band. (2) This frequency band is shared with fixed and mobile stations licensed under this and other parts of the Commission's rules. (3) This frequency band is shared with space stations (space to earth) in the fixed-satellite service. As of March 1, 2005, no new LTTS operators will be licensed in the 11.7-12.2 GHz band. LTTS operators authorized prior to March 1, 2005 may continue to operate in 11.7-12.2 GHz band until their license expires; no existing LTTS licenses will be renewed in the 11.7-12.2 GHz band. (4) This frequency band is shared with Government stations. (5) This frequency band is shared with earth stations (earth to space) in the fixed-satellite services. (6) The band segments 10.95-11.2 and 11.45-11.7 GHz are shared with space stations (space to earth) in the fixed-satellite service. (7) This frequency band is shared with space stations (space to earth) in the earth exploration satellite service. (8) This frequency band is shared with the common carrier and private-operational fixed point-to-point microwave services. (9) As of June 30, 1997, frequencies in this band only are available for assignment to LMDS radio stations, except for non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998. Stations authorized prior to June 30, 1997, may continue to operate within the existing terms of the outstanding licenses, subject to renewal. Non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998 shall operate on an unprotected basis and subject to harmful interference from each other or stations licensed prior to June 30, 1997, and on a secondary basis to LMDS radio stations. (e) 6425 to 6525 MHz—Mobile Only. (1) 1 MHz maximum authorized bandwidth channels. Transmit (or receive) (MHz) Receive (or transmit) (MHz) 6425.5 6475.5 6450.5 6500.5 (2) 8 MHz maximum authorized bandwidth channels. Transmit (or receive) (MHz) Receive (or transmit) (MHz) 6430.0 6480.0 6438.0 6488.0 6446.0 6496.0 6455.0 6505.0 6463.0 6513.0 6471.0 6521.0 (3) 25 MHz maximum authorized bandwidth channels. Transmit (or receive) (MHz) Receive (or transmit) (MHz) 6437.5 6487.5 6462.5 6512.5 (f) The frequency 27.255 MHz in the 27.23-27.28 MHz band is allocated for assignment to microwave auxiliary stations in this service on a shared basis with other radio services. Assignments to stations on this frequency will not be protected from such interference as may be experienced from the emissions of industrial, scientific and medical equipment operating on 27.12 MHz in accordance with § 2.106 of this chapter. [61 FR 26677, May 28, 1996, as amended at 62 FR 23168, Apr. 29, 1997; 63 FR 9448, Feb. 25, 1998; 63 FR 14039, Mar. 24, 1998; 65 FR 38332, June 20, 2000; 68 FR 4961, Jan. 31, 2003; 68 FR 12777, Mar. 17, 2003; 70 FR 4788, Jan. 31, 2005; 84 FR 63812, Nov. 19, 2019; 85 FR 22890, Apr. 23, 2020] § 101.805 Assignment of frequencies to mobile stations. The assignment of frequencies to mobile stations in this service will not be limited to a single licensee within any area. However, geographical limits within which mobile units may operate may be imposed by the Commission. § 101.807 Transmitter power. Stations in this service will not be authorized to use transmitters having a rated power output in excess of the limits set forth in § 101.113(b) and a standby transmitter having a rated power output in excess of that of the main transmitter with which it is associated will not be authorized. As an exception, operations on frequencies listed in §§ 74.602(a), 78.18(a)(6), and 78.18(a)(7) of this chapter are subject to the power limitations of §§ 74.636 and 78.101(a). [68 FR 12777, Mar. 17, 2003] § 101.809 Bandwidth and emission limitations. (a) Stations in this service operating on frequencies in the 27.23-27.28 MHz band will be authorized to employ only amplitude modulated or frequency modulated emission for radiotelephony. The authorization to use such emissions will be construed to include authority to employ unmodulated emission only for temporary or short periods necessary for equipment testing incident to the construction and maintenance of the station. (b) Stations in the service operating on frequencies above 940 MHz may be authorized to use amplitude modulated, frequency modulated or pulse type of emission for radiotelephony and television. In addition, the use of unmodulated emission may be authorized in appropriate cases. (c) The maximum bandwidths which will normally be authorized for single channel operation on frequencies below 500 MHz in this service must not exceed the limits set forth below: Type of emission Authorized bandwidth (kHz) A3E 8 F3E or (G3E) 40 (d) Maximum bandwidths in the following frequency bands must not exceed the limits set forth below: Maximum Authorized Frequency band (MHz) Bandwidth (MHz) 3,700 to 4,200 1 5,925 to 6,425 1 6,425 to 6,525 25 10,700 to 12,200 1 2 13,200 to 13,250 25 21,200 to 23,600 1 1 2 (e) The bandwidths authorized on frequencies above 500 MHz must be appropriate to the type of operation in any particular case. An application requesting such authorization must fully describe the modulation, emission, and bandwidth desired and must specify the bandwidth to be occupied. [61 FR 26677, May 28, 1996, as amended at 68 FR 4961, Jan. 31, 2003; 70 FR 4788, Jan. 31, 2005] § 101.811 Modulation requirements. (a) The use of modulating frequencies higher than 3000 hertz for single channel radiotelephony or tone signaling on frequencies below 500 MHz is not authorized. (b) When amplitude modulation is used, the modulation percentage must be sufficient to provide efficient communication and must normally be maintained above 70 percent on positive peaks, but may not exceed 100 percent on negative peaks. (c) When phase or frequency modulation is used for single channel radiotelephony on frequencies below 500 MHz, the deviation arising from modulation may not exceed plus or minus 15 kHz from the unmodulated carrier. (d) Each unmultiplexed radiotelephone transmitter having more than 3 watts plate power input to the final radio frequency stage and initially installed at the station in this service after September 4, 1956, must be provided with a device that will automatically prevent modulation in excess of that specified in paragraphs (b) and (c) of this section which may be caused by greater than normal audio level. § 101.813 Remote control operation of mobile television pickup stations. (a) Mobile television pickup stations (including nonbroadcast) may be operated by remote control from the fixed locations for periods not to exceed 6 months. (b) The Commission may, upon adequate showing by the licensee as to why the television pickup operations should not be conducted under a fixed station authorization, renew the authority granted under the provisions of paragraph (a) of this section. (c) Reference should be made to § 101.125 concerning mobile station antenna height restrictions and to paragraphs (c) and (f) of § 101.131 concerning control points. § 101.815 Stations at temporary fixed locations. (a) Authorizations may be issued upon proper application for the use of frequencies listed in § 101.803 by stations in the Local Television Transmission Service for rendition of temporary service to subscribers under the following conditions: (1) When a fixed station is to remain at a single location for less than 6 months, the location is considered to be temporary. (2) When a fixed station authorized to operate at temporary locations is installed and it subsequently becomes necessary for the station to operate from such location for more than six months, an application for a station authorization to specify the permanent location must be filed at least thirty days prior to the expiration of the six month period. (3) The station must be used only for rendition of communication service at a remote point where the provision of wire facilities is not practicable. (4) The antenna structure height employed at any location may not exceed the criteria set forth in § 17.7 of this chapter unless, in each instance, authorization for use of a specific maximum antenna structure height for each location has been obtained from the Commission prior to erection of the antenna. See § 101.125. (5) Applications for such stations must comply with the provisions of § 101.21(f). (b) Applications for authorizations to operate stations at temporary locations under the provisions of this section may be made upon FCC Form 601. Blanket applications may be submitted for the required number of transmitters. (c) Prior coordination of mobile assignments will be in accordance with the procedures in § 101.103(d) except that the prior coordination process for mobile (temporary fixed) assignments may be completed orally and the period allowed for response to a coordination notification may be less than 30 days if the parties agree. [61 FR 26677, May 28, 1996, as amended at 63 FR 68984, Dec. 14, 1998; 65 FR 38332, June 20, 2000; 68 FR 4961, Jan. 31, 2003] § 101.817 Notification of station operation at temporary locations. (a) The licensee of stations authorized pursuant to § 101.813 must notify the Commission prior to each period of operation. This notification must include: (1) The call sign, manufacturer's name, type or model number, output power and specific location of the transmitter(s); (2) The maintenance location for the transmitter; (3) The location of the transmitting or receiving station with which it will communicate and the identity of the correspondent operating such facilities; (4) The exact frequency or frequencies to be used; (5) The public interest, convenience and necessity to be served by operation of the proposed installation; (6) The commencement and anticipated termination dates of operation from each location. In the event the actual termination date differs from the previous notification, written notice thereof promptly must be given to the Commission; (7) Where the notification contemplates initially a service that is to be rendered for a period longer than 90 days, the notification must contain a showing as to why application should not be made for regular authorization; and (8) A notification must include compliance with the provisions of § 101.813(c). (b) A copy of the notification must be kept with the station license. [61 FR 26677, May 28, 1996, as amended at 63 FR 68984 Dec. 14, 1998] § 101.819 [Reserved] Subpart K [Reserved] Subpart L—Local Multipoint Distribution Service Source: 62 FR 23168, Apr. 29, 1997, unless otherwise noted. § 101.1001 Eligibility. Any entity, other than one precluded by § 101.7 and by § 101.1003, is eligible for authorization to provide Local Multipoint Distribution Service (LMDS) under this subpart. Authorization will be granted upon proper application filed under the rules in this part. § 101.1005 Frequencies available. (a) The following frequencies are available for assignment to LMDS in two license blocks: Block A of 300 MHz 29,100-29,250 MHz 31,075-31,225 MHz Block B of 150 MHz 31,000-31,075 MHz 31,225-31,300 MHz (b) In Block A licenses, the frequencies are authorized as follows: (1) 29,100-29,250 MHz is shared on a co-primary basis with feeder links for non-geostationary orbit Mobile Satellite Service (NGSO/MSS) systems in the band and is limited to LMDS hub-to-subscriber transmissions, as provided in §§ 25.257 and 101.103(h) of this chapter. (2) 31,075-31,225 MHz is authorized on a primary protected basis and is shared with private microwave point-to-point systems licensed prior to March 11, 1997, as provided in § 101.103(b). (c) In Block B licenses, the frequencies are authorized as follows: (1) On a primary protected basis if LMDS shares the frequencies with systems licensed as Local Television Transmission Service (LTTS) licensed prior to March 11, 1997, as provided in § 101.103(b). (2) On a co-equal basis with systems not licensed as LTTS prior to March 11, 1997, as provided in § 101.103(g). [62 FR 23168, Apr. 29, 1997, as amended at 81 FR 79945, Nov. 14, 2016] § 101.1007 Geographic service areas and number of licenses. LMDS service areas are Basic Trading Areas (BTAs) as defined in the Rand McNally 1992 Commercial Atlas & Marketing Guide, 123rd Edition, at pages 38-39, that identifies 487 BTAs based on the 50 States and as defined to include the BTA-like areas of the United States Virgin Islands, American Samoa, Guam, Mayaguez/Aguadilla-Ponce, Puerto Rico, San Juan, Puerto Rico, and the Commonwealth of Northern Marinas, for a total of 493 BTAs. § 101.1009 System operations. (a) The licensee may construct and operate any number of fixed stations anywhere within the area authorized by the license without prior authorization, except as follows: (1) A station would be required to be individually licensed if: (i) International agreements require coordination; (ii) Submission of an Environmental Assessment is required under § 1.1307 of this chapter. (iii) The station would affect areas identified in § 1.924 of this chapter. (2) Any antenna structure that requires notification to the Federal Aviation Administration (FAA) must be registered with the Commission prior to construction under § 17.4 of this chapter. (b) Whenever a licensee constructs or makes system changes as described in paragraph (a) of this section, the licensee is required to notify the Commission within 30 days of the change under § 1.947 of this chapter and include a statement of the technical parameters of the changed station. [62 FR 23168, Apr. 29, 1997, as amended at 63 FR 68984, Dec. 14, 1998; 69 FR 17959, Apr. 6, 2004] § 101.1011 Construction requirements. LMDS licensees must make a showing of “substantial service” in their license area within ten years of being licensed. “Substantial” service is defined as service which is sound, favorable, and substantially above a level of mediocre service which might minimally warrant renewal. Failure by any licensee to meet this requirement will result in forfeiture of the license and the licensee will be ineligible to regain it. [82 FR 41549, Sept. 1, 2017] § 101.1013 Permissible communications services. (a) Authorizations for stations in the Local Multipoint Distribution Service will be granted to provide services on a common carrier basis or a non-common carrier basis or on both a common carrier and non-common carrier basis in a single authorization. (b) Stations may render any kind of communications service consistent with the Commission's rules and the regulatory status of the station to provide services on a common carrier or non-common carrier basis. (c) An applicant or licensee may submit a petition at any time requesting clarification of the regulatory status required to provide a specific communications service. § 101.1017 Requesting regulatory status. (a) Initial applications. (b) Amendment of pending applications. (i) Change the carrier status requested, or (ii) Add to the pending request in order to obtain both common carrier and non-common carrier status in a single license. (2) Amendments to change, or add to, the carrier status in a pending application are minor amendments pursuant to § 1.927 of this chapter. (c) Modification of license. (i) Change the carrier status authorized, or (ii) Add to the status authorized in order to obtain both common carrier and non-common carrier status in a single license. (2) Applications to change, or add to, the carrier status in a license are modifications not requiring prior Commission authorization filed under § 1.927 of this chapter. If the change results in the discontinuance, reduction, or impairment of an existing service, the licensee is also governed by § 101.305(b) or (c) and submits the application under § 1.927 of this chapter in conformance with the time frames and requirements of §§ 101.305 (b) or (c). [62 FR 23168, Apr. 29, 1997, as amended at 63 FR 68984, Dec. 14, 1998] Subpart M—Competitive Bidding Procedures for LMDS Source: 62 FR 23172, Apr. 29, 1997, unless otherwise noted. § 101.1101 LMDS service subject to competitive bidding. Mutually exclusive initial applications for LMDS licenses are subject to competitive bidding procedures. The general competitive bidding procedures set forth in part 1, subpart Q of this chapter will apply unless otherwise provided in this subpart. [67 FR 46379, July 9, 2002] §§ 101.1102-101.1105 [Reserved] § 101.1107 Bidding credits for very small businesses, small businesses and entrepreneurs. (a) A winning bidder that qualifies as a very small business, as defined in § 101.1112, or a consortium of very small businesses may use a bidding credit of 45 percent to lower the cost of its winning bid. (b) A winning bidder that qualifies as a small business, as defined in § 101.1112, or a consortium of small businesses may use a bidding credit of 35 percent to lower the cost of its winning bid. (c) A winning bidder that qualifies as an entrepreneur, as defined in § 101.1112, or a consortium of entrepreneurs may use a bidding credit of 25 percent to lower the cost of its winning bid. (d) The bidding credits referenced in paragraphs (a), (b) and (c) of this section are not cumulative. [68 FR 43002, July 21, 2003] §§ 101.1109-101.1111 [Reserved] § 101.1112 Definitions. (a) Scope. (b) Very small business. (c) Small business. (d) Entrepreneur. [67 FR 46380, July 9, 2002, as amended at 68 FR 43002, July 21, 2003] Subpart N [Reserved] Subpart O—Multiple Address Systems Source: 65 FR 17450, Apr. 3, 2000, unless otherwise noted. General Provisions § 101.1301 [Reserved]

. § 101.1303 Eligibility. Authorizations for stations in this service will be granted in cases where it is shown that: (a) The applicant is legally, financially, technically and otherwise qualified to render the proposed service; (b) There are frequencies available to enable the applicant to render a satisfactory service; and (c) The public interest, convenience or necessity would be served by a grant thereof. § 101.1305 Private internal service. A private internal service is a service where entities utilize frequencies purely for internal business purposes or public safety communications and not on a for-hire or for-profit basis. § 101.1307 Permissible communications. MAS users may engage in terrestrial point-to-point and point-to-multi-point fixed and limited mobile operations. [66 FR 35111, July 3, 2001] § 101.1309 [Reserved] System License Requirements § 101.1311 [Reserved] § 101.1313 License term. The license term for stations authorized under this subpart is ten years from the date of original issuance or renewal. § 101.1315 Service areas. In the frequency bands not licensed on a site-by-site basis, the geographic service areas for MAS are Economic Areas (EAs) which are defined by the Department of Commerce's Bureau of Economic Analysis, as modified by the Commission. The EAs will consist of 176 areas, which includes Guam and the Northern Marianas Islands, Puerto Rico and the United States Virgin Islands, American Samoa, and the Gulf of Mexico. [66 FR 35111, July 3, 2001] § 101.1317 Competitive bidding procedures for mutually exclusive MAS EA applications. Mutually exclusive initial applications for licenses in the portions of the MAS bands licensed on a geographic area basis are subject to competitive bidding procedures. The general competitive bidding procedures set forth in part 1, subpart Q of this chapter will apply unless otherwise provided in this subpart. [67 FR 46380, July 9, 2002] § 101.1319 Competitive bidding provisions. For the purpose of establishing eligibility requirements and bidding credits for competitive bidding for MAS licenses, pursuant to § 1.2110 of this chapter, the following definitions apply: (a) Eligibility for small business provisions. (2) A very small business is an entity that, together with its affiliates and persons or entities that hold interests in such entity and their affiliates, has average gross revenues for the preceding three years not to exceed $3 million, as determined pursuant to § 1.2110 of this chapter. (b) Bidding credits. [65 FR 17450, Apr. 3, 2000, as amended at 67 FR 46380, July 9, 2002] §§ 101.1321-101.1323 [Reserved] System Requirements § 101.1325 Construction requirements. (a) Incumbent and site-based licenses are subject to the construction requirements set forth in § 101.63. (b) Each MAS EA licensee must provide service to at least one-fifth of the population in its service area or “substantial service” within five years of the license grant. In addition, MAS EA licensees must make a showing of continued “substantial service” within ten years of the license grant. Licensees must file maps and other supporting documents showing compliance with the respective construction requirements within the appropriate five- and ten-year benchmarks of the date of their initial licenses. (c) Failure by any licensee to meet these requirements will result in forfeiture or non-renewal of the initial license, and the licensee will be ineligible to regain it. [65 FR 17450, Apr. 3, 2000, as amended at 68 FR 4961, Jan. 31, 2003] § 101.1329 EA Station license, location, modifications. EA licensees may construct master and remote stations anywhere inside the area authorized in their licenses, without prior approval, so long as the Commission's technical and other Rules are complied with, except that individual licenses are required for any master station that: (a) Requires the submission of an environmental assessment under § 1.1307 of this chapter; (b) Requires international coordination; or (c) The station would affect areas identified in § 1.924 of this chapter. [65 FR 17450, Apr. 3, 2000, as amended at 69 FR 17959, Apr. 6, 2004] § 101.1331 Treatment of incumbents. (a) Any MAS station licensed by the Commission prior to July 1, 1999 in the 928.0-928.85 MHz/952.0-952.85 MHz/956.25-956.45 MHz and 928.85-929.0 MHz/959.85-960.0 MHz bands, as well as assignments or transfers of such stations approved by the Commission and consummated as of January 19, 2000, shall be considered incumbent. (b) Incumbent operators in the 928.0-928.85 MHz/952.0-952.85 MHz/956.25-956.45 MHz bands are grandfathered as of January 19, 2000, and may continue to operate and expand their systems pursuant to the interference protection and co-channel spacing criteria contained in § 101.105. (1) MAS operators are prohibited from acquiring additional frequencies in the 928.0-928.85 MHz/952.0-952.85 MHz/956.25-956.45 MHz bands and the 932.25625-932.49375 MHz/941.25625-941.49375 MHz bands for the purpose of expanding private carrier service and from changing the use of their frequencies in any manner that is inconsistent with this part. Refer to § 101.147 for designated uses. (2) Incumbent operators in the 928.0-928.85 MHz/952.0-952.85 MHz/956.25-956.45 MHz bands will include incumbents as defined in § 101.1331(a), as well as, their transferees and/or assignees and the successors of the transferees and/or assignees and retain their grandfathered status, provided that the use of the MAS frequencies remains unchanged from that of the transferor and/or assignor of the license. (c) Incumbent operators in the 928.85-929.0/959.85-960.0 MHz bands are grandfathered as of January 19, 2000, and may expand their systems provided that the signal level of the additional transmitter(s) does not increase the composite contour that occurs at a 40.2 kilometer (25-mile) radius from the center of each master station transmitter site. Incumbent operators and geographic area licensees may negotiate alternative criteria. (d) The frequencies associated with incumbent authorizations in the 928/959 MHz bands that have cancelled automatically or otherwise been recovered by the Commission will automatically revert to the applicable EA licensee. (e) The frequencies associated with incumbent authorizations in the 928/952/956 MHz bands that have cancelled automatically will revert to the Commission. [65 FR 17450, Apr. 3, 2000, as amended at 66 FR 35111, July 3, 2001] § 101.1333 Interference protection criteria. (a) Frequency coordination. (b) EA licensees are prohibited from exceeding a signal strength of 40 dBµV/m at their service area boundaries, unless a higher signal strength is agreed to by all affected co-channel, adjacent area licensees. (c) EA licensees are prohibited from exceeding a signal strength of 40 dBµV/m at incumbent licensees' 40.2 kilometer (25-mile) radius composite contour specified in § 101.1331(c). (d) In general, licensees shall comply with the appropriate coordination agreements between the United States and Canada and the United States and Mexico concerning cross-border sharing and use of the applicable MAS frequencies. (1) Canada—932.0-932.25 MHz and 941.0-941.25 MHz. 2 2 2 2 Table 1—Maximum Radiated Power Class of station Band MHz Maximum EIRP Maximum ERP 1 Watts dBW Watts dBW Master 941.0-941.5 1000 30 600 27.8 Fixed Remote and Master 932.0-932.5 50 17 30 14.8 1 (ii) Maximum antenna height above average terrain for master stations operating at a maximum power shall not exceed 150 meters. Above 150 meters, the power of master stations shall be in accordance with following table: Table 2—Antenna Height—Power Reduction Table Antenna height above average terrain (meters) EIRP ERP Watts dBW Watts dBW Above 305 200 23 120 20.8 Above 275 to 305 250 24 150 21.8 Above 245 to 275 315 25 190 22.8 Above 215 to 245 400 26 240 23.8 Above 180 to 215 500 27 300 24.8 Above 150 to 180 630 28 380 25.8 Note to Table 2: This information is from the Arrangement between the Federal Communications Commission and the National Telecommunications and Information Administration of the United States of America, and Industry Canada concerning the use of the bands 932 to 935 MHz and 941 to 944 MHz along the United States-Canada border (2) Canada—928-929 MHz and 952-960 MHz. 2 2 2 Maximum EIRP for master stations in the MHz band: 1000 watts (30 dBW) 952-953 Maximum EIRP for fixed remote stations or stations in the 928-929 MHz band: 50 watts (17 dBW) master Maximum EIRP for mobile master stations: 25 watts (14 dBW) Maximum antenna height above average master or control stations: 152 m at 1000 watts terrain for EIRP, power derated in accordance with the following table: Antenna height above EIRP Watts dBm Above 305 200 53 Above 275 to 305 250 54 Above 244 to 274 315 55 Above 214 to 243 400 56 Above 183 to 213 500 57 Above 153 to 182 630 58 Below 152 1000 60 Note to table in paragraph ( d This information is from the Arrangement between the Department of Communications of Canada and the Federal Communications Commission of the United States of America Concerning the Use of the Bands 928 to 929 MHz and 952 to 953 MHz along the United States-Canada Border (3) Mexico. 2 Antenna height above EIRP Watts dBW Above 305 200 23 Above 274 to 305 250 24 Above 243 to 274 315 25 Above 213 to 243 400 26 Above 182 to 213 500 27 Above 152 to 182 630 28 Up to 152 1000 30 Note to table in paragraph ( d This information is from the Agreement between the Government of the United States of America and the Government of the United Mexican States Concerning the Allocation and Use of Frequency Bands by Terrestrial Non-Broadcasting Radiocommunication Services Along the Common Border, Protocol #6 Concerning the Allotment and Use of Channels in the 932-932.5 and 941-941.5 MHz Bands for Fixed Point-to-Multipoint Services Along the Common Border [65 FR 17450, Apr. 3, 2000, as amended at 68 FR 4961, Jan. 31, 2003] Subpart P—Multichannel Video Distribution and Data Service Rules for the 12.2-12.7 GHz Band Source: 69 FR 31746, June 7, 2004, unless otherwise noted. § 101.1401 Service areas. Multichannel Video Distribution and Data Service (MVDDS) is licensed on the basis of Designated Market Areas (DMAs). The 214 DMA service areas are based on the 210 Designated Market Areas delineated by Nielsen Media Research and published in its publication entitled U.S. Television Household Estimates, September 2002, plus four FCC-defined DMA-like service areas. (a) Alaska—Balance of State (all geographic areas of Alaska not included in Nielsen's three DMAs for the state: Anchorage, Fairbanks, and Juneau); (b) Guam and the Northern Mariana Islands; (c) Puerto Rico and the United States Virgin Islands; and (d) American Samoa. § 101.1403 Broadcast carriage requirements. MVDDS licensees are not required to provide all local television channels to subscribers within its area and thus are not required to comply with the must-carry rules, nor the local signal carriage requirements of the Rural Local Broadcast Signal Act. § 101.1405 Channeling plan. Each license shall have one spectrum block of 500 megahertz per geographic area that can be divided into any size channels. Disaggregation is not allowed. § 101.1407 Permissible operations for MVDDS. MVDDS licensees must use spectrum in the 12.2-12.7 GHz band for any digital fixed non-broadcast service (broadcast services are intended for reception of the general public and not on a subscribership basis) including one-way direct-to-home/office wireless service. Mobile and aeronautical services are not authorized. Two-way services may be provided by using other spectrum or media for the return or upstream path. § 101.1409 Treatment of incumbent licensees. Terrestrial private operational fixed point-to-point licensees in the 12.2-12.7 GHz band which were licensed prior to MVDDS or NGSO FSS satellite stations are incumbent point-to-point stations and are not entitled to protection from harmful interference caused by later MVDDS or NGSO FSS entrants in the 12.2-12.7 GHz band, except for public safety stations which must be protected. MVDDS and NGSO FSS operators have the responsibility of resolving any harmful interference problems that their operations may cause to these public safety incumbent point-to-point operations in the 12.2-12.7 GHz band. Incumbent public safety terrestrial point-to-point licensees may only make minor changes to their stations without losing this protection. This does not relieve current point-to-point licensees of their obligation to protect BSS operations in the subject frequency band. All point-to-point applications, including low-power operations, for new licenses, major amendments to pending applications, or major modifications to existing licenses for the 12.2-12.7 GHz band are no longer accepted except for renewals and changes in ownership. See § 1.929 of this chapter for definitions of major and minor changes. § 101.1411 Regulatory status and eligibility. (a) MVDDS licensees are permitted to provide one-way video programming and data services on a non-common carrier and/or on a common carrier basis. MVDDS is not required to be treated as a common carrier service unless it is providing non-Internet voice and data services through the public switched network. (b) [Reserved] [69 FR 31746, June 7, 2004, as amended at 90 FR 57713, Dec. 12, 2025] § 101.1412 MVDDS eligibility restrictions for cable operators. (a) Eligibility for MVDDS license. No cable operator, nor any entity owning an attributable interest in a cable operator, shall have an attributable interest in an MVDDS license if such cable operator's service area significantly overlaps the MVDDS license area, as “significantly overlaps” is defined in paragraph (e) of this section. (b) Definition of cable operator. For the purposes of paragraph (a) of this section, the term “cable operator” means a company that is franchised to provide cable service, as defined in 47 CFR 76.5(ff) of this chapter, in all or part of the MVDDS license area. (c) For the purpose of this section, the term “MVPD household” refers to a household that subscribes to one or more Multichannel Video Program Distributors (MVPDs), as defined in 47 CFR 76.1000(e) of this chapter. (d) Waiver of restriction. Upon completion of the initial award of an MVDDS license, a cable operator may petition for a waiver of the restriction on eligibility based upon a showing that changed circumstances or new evidence indicate that no significant likelihood of substantial competitive harm will result from the operator retaining an attributable interest in the MVDDS license. (e) Significant overlap with service area. For purposes of paragraph (a) of this section, significant overlap occurs when a cable operator's subscribers in the MVDDS license area make up thirty-five percent or more of the MVPD households in that MVDDS license area. (f) Definition of attributable interest. For purposes of paragraph (a) of this section, an entity shall be considered to have an attributable interest in a cable operator or MVDDS licensee pursuant to the following criteria: (1) A controlling interest shall constitute an attributable interest. Controlling interest means majority voting equity ownership, any general partnership interest, or any means of actual working control (including negative control) over the operation of the entity, in whatever manner exercised. (2) Any general partnership interest in a partnership; (3) Partnership and similar ownership interests (including limited partnership interests) amounting to 20 percent or more of the total partnership interests, calculated according to both the percentage of equity paid in and the percentage of distribution of profits and losses; (4) Any stock interest amounting to 20 percent or more of the outstanding voting stock of an entity; (5) Any voting or non-voting stock interest, amounting to 20 percent or more of the total outstanding stock of an entity; (6) Stock interests held in trust that exceed the limit set forth in paragraph (f) of this section shall constitute an attributable interest of any person who holds or shares the power to vote such stock, of any person who has the sole power to sell such stock, and, in the case of stock held in trust, of any person who has the right to revoke the trust at will or to replace the trustee at will. If the trustee has a familial, personal, or extra-trust business relationship to the grantor or the beneficiary, the stock interests held in trust shall constitute an attributable interest of such grantor or beneficiary, as appropriate. (7) Debt and interests such as warrants and convertible debentures, options, or other interests (except non-voting stock) with rights of conversion to voting interests shall not constitute attributable interests unless and until conversion is effected. (8) An interest in a Limited Liability Company (LLC) or Registered Limited Liability Partnership (RLLP) amounting to 20 percent or more, shall constitute an attributable interest of each such limited partner. (9) Officers and directors of a cable operator, an MVDDS licensee, or an entity that controls such cable operator or MVDDS licensee, shall be considered to have an attributable interest in such cable operator or MVDDS licensee. (10) Ownership interests that are held indirectly by any party through one or more intervening corporations or other entities shall be determined by successive multiplication of the ownership percentages for each link in the vertical ownership chain and application of the relevant attribution benchmark to the resulting product, except that, if the ownership for any interest in any link in the chain exceeds 50 percent or represents actual control, it shall be treated as if it were a 100 percent interest. (11) Any person who manages the operations of a cable operator or an MVDDS licensee pursuant to a management agreement shall be considered to have an attributable interest in such cable operator or MVDDS licensee, if such person or its affiliate has authority to make decisions or otherwise engage in practices or activities that determine, or significantly influence: (i) The nature or types of services offered by such entity; (ii) The terms upon which such services are offered; or (iii) The prices charged for such services. (12) Any person or its affiliate who enters into a joint marketing arrangement with a cable operator, an MVDDS licensee, or an affiliate of such entity, shall be considered to have an attributable interest in such cable operator, MVDDS licensee, or affiliate, if such person or its affiliate has authority to make decisions or otherwise engage in practices or activities that determine: (i) The nature or types of services offered by such entity; (ii) The terms upon which such services are offered; or (iii) The prices charged for such services. (g) Divestiture. i.e., (1) Divestiture shall be limited to the following prescribed means: (i) An MVDDS applicant holding an attributable interest in a cable operator may divest such interest in the cable company. (ii) Other MVDDS applicants disqualified under paragraph (a) of this section, will be permitted to: (A) Partition and divest that portion of the existing service area that causes it to exceed the overlap restriction in paragraph (a) of this section, subject to applicable regulations of state and local governments; or (B) Partition and divest that portion of the MVDDS geographic service area that exceeds the overlap restriction in paragraph (a) of this section. (iii) Divestiture may be to an interim trustee if a buyer has not been secured in the required period of time, as long as the MVDDS applicant has no interest in or control of the trustee and the trustee may dispose of the license as it sees fit. (2) The MVDDS applicant shall certify as an exhibit to its short form application that it and all parties to the application will come into compliance with paragraph (a) of this section. (3) If such MVDDS applicant is a successful bidder in an auction, it must submit with its long-form application a signed statement describing its efforts to date and future plans to come into compliance with the eligibility restrictions in paragraph (a) of this section. (4) If such an MVDDS applicant is otherwise qualified, its application will be granted subject to a condition that the applicant shall come into compliance with the eligibility restrictions in paragraph (a) within ninety (90) days of final grant of such MVDDS license. (5) An MVDDS applicant will be considered to have come into compliance with paragraph (a) of this section if: (i) In the case of the divestiture of a portion of an MVDDS license service area, it has successfully completed the assignment or transfer of control of the requisite portion of the MVDDS geographic service area. (ii) In all other cases, it has submitted to the Commission a signed certification that it has come into compliance with paragraph (a) of this section by the following means, identified in such certification: (A) By divestiture of a disqualifying interest in a cable operator, identified in terms of the interest owned, the owner of such interest (and, if such owner is not the applicant itself, the relationship of the owner to the applicant), the name of the party to whom such interest has been divested, and the date such divestiture was executed; or (B) By divestiture of the requisite portion of the cable operator's existing service area, identified in terms of the name of the party to whom such interest has been divested, the date such divestiture was executed, the name of any regulatory agency that must approve such divestiture, and the date on which an application was filed for this purpose with the regulatory agency. (6) If no such certification or application is tendered to the Commission within ninety (90) days of final grant of the initial license, the Commission may cancel or rescind the license automatically, shall retain all monies paid to the Commission, and, based on the facts presented, shall take any other action it may deem appropriate. Note to § 101.1412: Waivers of § 101.1412(f) may be granted upon an affirmative showing: (a) That the interest holder has less than a fifty percent voting interest in the licensee and there is an unaffiliated single holder of a fifty percent or greater voting interest; (b) That the interest holder is not likely to affect the local market in an anticompetitive manner; (c) That the interest holder is not involved in the operations of the licensee and does not have the ability to influence the licensee on a regular basis; and (d) That grant of a waiver is in the public interest because the benefits to the public of common ownership outweigh any potential anticompetitive harm to the market. [69 FR 31746, June 7, 2004, as amended at 69 FR 59146, Oct. 4, 2004] § 101.1413 License term and construction requirements. (a) The MVDDS license term is ten years, beginning on the date of the initial authorization grant. (b) As a construction requirement, MVDDS licensees must make a showing of substantial service at the end of five years into the license period and ten years into the license period. The substantial service requirement is defined as a service that is sound, favorable, and substantially above a level of mediocre service which might minimally warrant renewal. At the end of five years into the license term and ten years into the license period, the Commission will consider factors such as: (1) Whether the licensee's operations service niche markets or focus on serving populations outside of areas serviced by other MVDDS licensees; (2) Whether the licensee's operations serve populations with limited access to telecommunications services; and (3) A demonstration of service to a significant portion of the population or land area of the licensed area. [69 FR 31746, June 7, 2004, as amended at 82 FR 41549, Sept. 1, 2017; 90 FR 57713, Dec. 12, 2025] § 101.1415 Partitioning and disaggregation. (a) MVDDS licensees are permitted to partition licensed geographic areas along county borders (Parishes in Louisiana or Territories in Alaska). Disaggregation will not be permitted by MVDDS licensees in the 12.2-12.7 GHz band. “Partitioning” is the assignment of geographic portions of a license along geopolitical or other boundaries. “Disaggregation” is the assignment of discrete portions or “blocks” of spectrum licensed to a geographic licensee or qualifying entity. (b) Eligibility. (2) MVDDS licensees may apply to the Commission to partition their licensed geographic service areas to eligible entities and are free to partition their licensed spectrum at any time following the grant of a license. (3) Any existing frequency coordination agreements shall convey with the assignment of the geographic area or spectrum, and shall remain in effect for the term of the agreement unless new agreements are reached. (c) Technical standards. (2) The geographic coordinates must be specified in degrees, minutes, and seconds to the nearest second of latitude and longitude and must be based upon the 1983 North American Datum (NAD83). (d) Unjust enrichment. (e) License term. [69 FR 31746, June 7, 2004, as amended at 82 FR 41549, Sept. 1, 2017] § 101.1417 [Reserved] § 101.1421 Coordination of adjacent area MVDDS stations. (a) MVDDS licensees in the 12.2-12.7 GHz band are required to develop sharing and protection agreements based on the design and architecture of their systems, in order to ensure that no harmful interference occurs between adjacent geographical area licensees. MVDDS licensees shall: (1) Engineer systems to be reasonably compatible with adjacent and co-channel operations in the adjacent areas on all its frequencies; and (2) Cooperate fully and in good faith to resolve interference and transmission problems that are present on adjacent and co-channel operations in adjacent areas. (b) Harmful interference to public safety stations, co-channel MVDDS stations operating in adjacent geographic areas, and stations operating on adjacent channels to MVDDS stations is prohibited. In areas where the DMAs are in close proximity, careful consideration should be given to power requirements and to the location, height, and radiation pattern of the transmitting and receiving antennas. Licensees are expected to cooperate fully in attempting to resolve problems of potential interference before bringing the matter to the attention of the Commission. (c) Licensees shall coordinate their facilities whenever the facilities have optical line-of-sight into other licensees' areas or are within the same geographic area. Licensees are encouraged to develop operational agreements with relevant licensees in the adjacent geographic areas. Incumbent public safety POFS licensee(s) shall retain exclusive rights to its channel(s) within the relevant geographical areas and must be protected in accordance with the procedures in § 101.103. A list of public safety incumbents is attached as Appendix I to the Memorandum Opinion and Order and Second Report and Order, Docket 98-206, released May 23, 2002. Please check with the Commission for any updates to that list. § 101.1423 Canadian and Mexican coordination. Pursuant to § 2.301 of this chapter, MVDDS systems in the United States within 56 km (35 miles) of the Canadian and Mexican border will be granted conditional licenses, until final international agreements are approved. These systems may not cause harmful interference to stations in Canada or Mexico. MVDDS stations must comply with the procedures outlined under §§ 101.147(p) and 1.928(f)(1) and (f)(2) of this chapter until final international agreements concerning MVDDS are signed. Section 1.928(f) of this chapter states that transmitting antennas can be located as close as five miles (eight kilometers) of the border if they point within a sector of 160 degrees away from the border, and as close as thirty-five miles (fifty-six km) of the border if they point within a sector of 200 degrees toward the border without coordination with Canada. MVDDS licensees shall apply this method near the Canadian and Mexican borders. No stations are allowed within 5 miles of the borders. § 101.1425 [Reserved] § 101.1427 MVDDS licenses subject to competitive bidding. Mutually exclusive initial applications for MVDDS licenses in the 12.2-12.7 GHz band are subject to competitive bidding. The general competitive bidding procedures set forth in part 1, subpart Q of this chapter will apply unless otherwise provided in this subpart. § 101.1429 Designated entities. (a) Eligibility for small business provisions. (2) A small business is an entity that, together with its controlling interests and affiliates, has average annual gross revenues not exceeding $15 million for the preceding three years. (3) An entrepreneur is an entity that, together with its controlling interests and affiliates, has average annual gross revenues not exceeding $40 million for the preceding three years. (b) Bidding credits. § 101.1440 MVDDS protection of DBS. (a) An MVDDS licensee shall not begin operation unless it can ensure that the EPFD from its transmitting antenna at all DBS customers of record locations is below the values listed for the appropriate region in § 101.105(a)(4)(ii). Alternatively, MVDDS licensees may obtain a signed written agreement from DBS customers of record stating that they are aware of and agree to their DBS system receiving MVDDS signal levels in excess of the appropriate EPFD limits specified in § 101.105(a)(4)(ii). DBS customers of record are those who had their DBS receive antennas installed prior to or within the 30 day period after notification to the DBS operator by the MVDDS licensee of the proposed MVDDS transmitting antenna site. (b) MVDDS licensees are required to conduct a survey of the area around its proposed transmitting antenna site to determine the location of all DBS customers of record that may potentially be affected by the introduction of its MVDDS service. The MVDDS licensee must assess whether the signal levels from its system, under its deployment plans, would exceed the appropriate EPFD levels in § 101.105(a)(4)(ii) at any DBS customer of record location. Using EPFD calculations, terrain and building structure characteristics, and the survey results, an MVDDS licensee must make a determination of whether its signal level(s) will exceed the EPFD limit at any DBS customer of record sites. To assist in making this determination, the MVDDS provider can use the EPFD contour model developed by the Commission and described in Appendix J of the Memorandum Opinion and Order and Second Report and Order, ET Docket 98-206 or on the OET website at http://www.fcc.gov/oet/dockets/et98-206. (c) If the MVDDS licensee determines that its signal level will exceed the EPFD limit at any DBS customer site, it shall take whatever steps are necessary, up to and including finding a new transmit site, to ensure that the EPFD limit will not be exceeded at any DBS customer location. (d) Coordination between MVDDS and DBS licensees. (i) Geographic location (including NAD 83 coordinates) of its proposed station location; (ii) Maximum EIRP of each transmitting antenna system; (iii) Height above ground level for each transmitting antenna; (iv) Antenna type along with main beam azimuth and altitude orientation information, and description of the antenna radiation pattern; (v) Description of the proposed service area; and (vi) Survey results along with a technical description of how it determined compliance with the appropriate EPFD level at all DBS subscriber locations. (2) No later than forty-five days after receipt of the MVDDS system information in paragraph (d)(1) of this section, the DBS licensee(s) shall provide the MVDDS licensee with a list of only those new DBS customer locations that have been installed in the 30-day period following the MVDDS notification and that the DBS licensee believes may receive harmful interference or where the prescribed EPFD limits may be exceeded. In addition, the DBS licensee(s) could indicate agreement with the MVDDS licensee's technical assessment, or identify DBS customer locations that the MVDDS licensee failed to consider or DBS customer locations where they believe the MVDDS licensee erred in its analysis and could exceed the prescribed EPFD limit. (3) Prior to commencement of operation, the MVDDS licensee must take into account any new DBS customers or other relevant information provided by DBS licensees in response to the notification in paragraph (d)(1) of this section. (e) Beginning thirty days after the DBS licensees are notified of a potential MVDDS site in paragraph (d)(1) of this section, the DBS licensees are responsible for providing information they deem necessary for those entities who install all future DBS receive antennas on its system to take into account the presence of MVDDS operations so that these DBS receive antennas can be located in such a way as to avoid the MVDDS signal. These later installed DBS receive antennas shall have no further rights of complaint against the notified MVDDS transmitting antenna(s). (f) In the event of either an increase in the EPFD contour in any direction or a major modification as defined in § 1.929 of this chapter, such as the addition of an antenna, to an MVDDS station, the procedures of paragraphs (d) and (e) of this section and rights of complaint begin anew. Exceptions to this are renewal, transfer of control, and assignment of license applications. (g) Interference complaints. Subpart Q—Service and Technical Rules for the 70/80/90 GHz Bands Source: 69 FR 3267, Jan. 23, 2004, unless otherwise noted. § 101.1501 Service areas. The 70/80/90 GHz bands are licensed on the basis of non-exclusive nationwide licenses. There is no limit to the number of non-exclusive nationwide licenses that may be granted for these bands, and these licenses will serve as a prerequisite for registering individual point-to-point links. In the 71-76 GHz and 81-86 GHz bands, nationwide non-exclusive licenses also serve as a blanket license for air-to-air and ship-to-ship operations, and as a prerequisite to register ground-to-air (GTA) stations and to operate associated GTA and air-to-ground (ATG) transmissions; and as a prerequisite to register shore stations and aerostat relay stations and to operate associated ship-to-shore, shore-to-ship, shore-to-aerostat, aerostat-to-ship, and aerostat-to-shore transmissions. [89 FR 33261, Apr. 29, 2024] § 101.1505 Segmentation plan. (a) An entity may request any portion of the 71-76 GHz and 81-86 GHz bands, up to 5 gigahertz in each segment for a total of 10 gigahertz. Licensees are also permitted to register smaller segments. (b) The 92-95 GHz band is divided into three segments: 92.0-94.0 GHz and 94.1-95.0 GHz for non-government and government users, and 94.0-94.1 GHz for Federal Government use. Pairing is allowed and segments may be aggregated without limit. The bands in paragraph (a) of this section can be included for a possible 12.9 gigahertz maximum aggregation. Licensees are also permitted to register smaller segments than provided here. [70 FR 29998, May 25, 2005] § 101.1507 Permissible operations. Licensees may use the 70 GHz, 80 GHz, and 90 GHz bands for any point-to-point, non-broadcast service. Licensees may use the 70 GHz and 80 GHz bands for aeronautical and maritime service as set forth in § 101.1528. The segments may be unpaired or paired, but pairing will be permitted only in a standardized manner (e.g., 71-72.25 GHz may be paired only with 81-82.25 GHz, and so on). The segments may be aggregated without limit. [89 FR 33262, Apr. 29, 2024] § 101.1511 Regulatory status and eligibility. (a) Licensees are permitted to provide services on a non-common carrier and/or on a common carrier basis. (b) Licensees are subject to the requirements set forth in § 101.7. (c) Any entity, other than one precluded by § 101.7, is eligible for authorization to provide service under this part. Authorization will be granted upon proper application filing and link coordination in accordance with the Commission's rules. § 101.1513 License term. The license term is ten years, beginning on the date of the initial authorization (nationwide license) grant. Registering links will not change the overall renewal period of the license. [70 FR 29998, May 25, 2005] § 101.1523 Sharing and coordination among non-government licensees and between non-government and government services. Link to an amendment published at 89 FR 33262, Apr. 29, 2024. (a) Registration of each link in the 71-76 GHz, 81-86 GHz, and 92-95 GHz bands will be in the Universal Licensing System until the Wireless Telecommunications Bureau announces by public notice the implementation of a third-party database. (b) The licensee or applicant shall: (1) Complete coordination with Federal Government links according to the coordination standards and procedures adopted in Report and Order, FCC 03-248, and as further detailed in subsequent implementation public notices issued consistent with that order; (2) Provide an electronic copy of an interference analysis to the third-party database manager which demonstrates that the potential for harmful interference to or from all previously registered non-government links has been analyzed according to the standards of section 101.105 and generally accepted good engineering practice, and that the proposed non-government link will neither cause harmful interference to, nor receive harmful interference from, any previously registered non-government link; and (3) Provide upon request any information related to the interference analysis and the corresponding link. The third-party database managers shall receive and retain the interference analyses electronically and make them available to the public. Protection of individual links against harmful interference from other links shall be granted to first-in-time registered links. Successful completion of coordination via the NTIA automated mechanism shall constitute successful non-Federal Government to Federal Government coordination for that individual link. (c) In addition, the following types of non-Federal Government links require the filing with the Commission an FCC Form 601 for each link for the purpose of coordination and registration, in addition to registering each link in the third-party database: (1) Facilities requiring the submission of an Environmental Assessment, (2) Facilities requiring international coordination, and (3) Operation in quiet zones. (d) The Commission believes the licensee is in the best position to determine the nature of its operations and whether those operations impact these settings, and is required to submit to a database manager, as part of the registration package, documentation that an FCC Form 601 has been filed. [69 FR 3267, Jan. 23, 2004, as amended at 70 FR 29998, May 25, 2005] § 101.1525 [Reserved] § 101.1527 Canadian and Mexican coordination. (a) A licensee of bands 71.0-76.0, 81.0-86.0, 92-94 GHz and 94.1-95 GHz must comply with § 1.928(f) of this chapter, which pertains to coordination with Canada. (b) A licensee of bands 71.0-76.0, 81.0-86.0, 92-94 GHz and 94.1-95 GHz must coordinate with Mexico in the following situations: (1) For a station the antenna of which looks within the 200 deg. sector toward the Mexico-United States borders, that area in each country within 35 miles of the borders; and (2) For a station the antenna of which looks within the 160 deg. sector away from the Canada-United States borders, that area in each country within 5 miles of the borders. § 101.1528 Requirements for aeronautical and maritime links to, from, or between endpoints in motion. Link to an amendment published at 89 FR 33264, Apr. 29, 2024. (a) Requirements for aeronautical ground stations and endpoints in motion. (2) Ground-to-air transmissions are permitted only in the 81-86 GHz band. (3) Air-to-air transmissions are permitted only between aircraft that are separated by a minimum slant path distance of 50 km. (4) Transmissions are only permitted to and from aircraft at altitudes between 10,000 ft and 50,000 ft. (5) Ground stations must operate with a minimum elevation angle of 5 degrees and a maximum elevation angle of 45 degrees. (6) Ground stations must be located at least 10 km from any existing Non-Federal FSS earth station or Federal facility listed in table 4 to paragraph (c)(2) of this section, absent a coordination agreement with the FSS operator. (7) Ground stations must be located at least 150 km from the specific Federal facilities and not within the areas listed in table 3 to paragraph (c)(1) of this section, absent a coordination agreement with the Federal operator. (8) Ground stations must be located at least 10 km from any existing Federal or non-Federal fixed station receiver, absent a coordination agreement with the fixed station operator. (9) Air-to-air transmissions are permitted in 81-86 GHz subject to the following limitations; (i) EIRP signal levels radiated along a line between the airborne transmitter and the latitude and longitude of the observatories in table 3 to paragraph (c)(1) of this section, which must be maintained as the airborne transmitter moves, cannot exceed the levels shown in table 1 to this paragraph (a)(9)(i). Within the range of 150 km and 375 km, the maximum allowable EIRP levels for horizontal distances not listed in table below may be approximated by linear interpolation. Table 1 to Paragraph ( a i d Frequency Horizontal distance (km) 150 175 200 225 250 275 300 325 350 375 81 −11.2 −8.8 −6.5 −4.2 −1.5 1.1 3.9 6.7 10 13.5 82 −11.5 −9.2 −6.9 −4.6 −2 0.5 3.2 6 9.2 12.6 83 −11.7 −9.5 −7.3 −5 −2.4 0 2.7 5.4 8.6 11.9 84 −11.9 −9.7 −7.5 −5.3 −2.8 −0.4 2.3 4.9 8 11.3 85 −12.1 −9.9 −7.8 −5.5 −3 −0.7 1.9 4.5 7.6 10.8 86 −12.2 −10 −7.9 −5.7 −3.3 −0.9 1.7 4.2 7.3 10.5 (ii) A licensee of aeronautical end points in motion must have a capability to target specific areas which can be added to a “block list” as part of a dynamic link management system. If air-to-air transmission within the main beam of the radio astronomy receiver cannot be avoided, air-to-air transmissions within the radio horizon of the radio astronomy site (as specified in table 2 to this paragraph (a)(9)(ii)) should not occur. Table 2 to Paragraph ( a ii [km] Altitude Approximate radio horizon 10,360 375 8,000 315 6,000 260 5,000 220 4,000 180 3,000 125 (iii) The list of radio astronomy sites may be periodically updated by the NTIA and the FCC. This rule may be superseded by a coordination agreement between the licensee and NSF, in which case the coordination agreement will specify the technical restrictions. (10) Air-to-air transmissions in the 71-76 GHz band are subject to the following restrictions: (i) EIRP signal levels shall be limited to 20 dBW/1000 MHz towards each military installation listed in table 4 to paragraph (c)(2) that is within 375 km of the airborne transmitter. This 20 dBW/1000 MHz EIRP applies to the power radiated along a line between the airborne transmitter and the latitude and longitude of the military installations in table 4 to paragraph (c)(2) of this section and must be maintained as the airborne transmitter moves. An EIRP of 57 dBW/1000 MHz is allowed in other directions. The list of military installations in table 4 to paragraph (c)(2)of this section may be periodically updated by the NTIA and the FCC. This rule may be superseded by a coordination agreement between the licensee and the Department of Defense (DoD), in which case the coordination agreement will specify the technical restrictions and allow the licensee and DoD to update the list of protected installations in the agreement. The locations of all aeronautical end-point-in-motion ground stations will be provided to NTIA and DoD as part of the coordination process. (ii) A licensee of aeronautical end points in motion must have a capability to target specific areas which can be added to a “block list” as part of a dynamic link management system. If air-to-air transmission within the main beam of the radio astronomy receivers associated with the observatories in table 3 to paragraph (c)(1) of this section cannot be avoided, air-to-air transmissions within the radio horizon of the radio astronomy site (as specified in table 2 to paragraph (a)(9)(ii) of this section) should not occur. (iii) The list of radio astronomy sites may be periodically updated by the NTIA and the FCC. This rule may be superseded by a coordination agreement between the licensee and NSF, in which case the coordination agreement will specify the technical restrictions. (b) Requirements for maritime shore stations, aerostats, and endpoints in motion. (2) Shore-to-ship transmissions are only permitted in the 71-76 GHz band. (3) Shore-to-aerostat transmissions are only permitted in the 71-76 GHz band. (4) Aerostat-to-ship transmissions are only permitted in the 71-76GHz band. (5) Aerostat-to-shore transmissions are only permitted in the 81-86GHz band. (6) Aerostat must not operate above an altitude limit of 1000 ft. (7) Ship-to-ship communications are limited to ships located more than 30 km offshore, or closer only where the main beam of the transmit antenna is oriented at least 15 degrees away from any point on the shore. (8) Ship stations and aerostat stations must only operate when there is a minimum separation of 150 km to the specific Federal facilities and not within the areas listed in table 3 to paragraph (c)(1) of this section, absent a coordination agreement with the Federal operator. (9) Shore-to-ship and ship-to-shore transmission must only occur between stations that are located at least 10 km from the Federal military installations listed in table 4 to paragraph (c)(2) of this section, absent a coordination agreement with the Federal operator. (c) Protected Federal sites. Table 3 to Paragraph ( c RAS station name North West Arizona Radio Observatory (ARO) 12-meter 31°57′11.9″ 111°36′53.6″ Green Bank Observatory 38°25′59″ 79°50′23″ Very Large Array (VLA), Socorro, NM 34°04′44″ 107°37′06″ Owens Valley Radio Observatory (OVRO), Big Pine, CA 37°14′02″ 118°16′55″ Haystack Observatory, Westford, MA 42°37′24″ 071°29′18″ National Radio Astronomy Observatory, Very Long Baseline Array Stations: Brewster, WA 48°07′52″ 119°41′00″ Fort Davis, TX 30°38′06″ 103°56′41″ Hancock, NH 42°56′01″ 71°59′12″ Kitt Peak, AZ 31°57′23″ 111°36′45″ Los Alamos, NM 35°46′30″ 106°14′44″ Mauna Kea, HI 19°48′05″ 155°27′20″ North Liberty, IA 41°46′17″ 91°34′27″ Owens Valley, CA 37°13′54″ 118°16′37″ Pie Town, NM 34°18′04″ 108°07′09″ Saint Croix, VI 17°45′24″ 64°35′01″ National Radio Quiet Zone Rectangular area between latitudes 37°30′ N and 39°15′ N, and longitudes 78°30′ W and 80°30′ W. Next-generation Very Large Array (ngVLA) Rectangular area between latitudes 31°22′1.9″ N and 34°23′10″ N, and longitudes 109°1′53.4″ W and 103°4′39″ W. (2) Military installations: Table 4 to Paragraph ( c Military installation Latitude Longitude Redstone Arsenal, AL 34°41′42″ N 086°39′04″ W Fort Huachuca, AZ 31°33′18″ N 110°20′59″ W Yuma Proving Ground, AZ 33°01′02″ N 114°15′05″ W Beale AFB, CA 39°06′41″ N 121°21′36″ W Camp Parks Reserve Forces Training Area, CA 34°43′00″ N 121°54′08″ W China Lake Naval Air Weapons Station, CA 35°41′05″ N 117°41′19″ W Edwards AFB, CA 34°54′58″ N 117°56′07″ W Fort Irwin, CA 35°16′22″ N 116°41′05″ W Marine Corps Air Ground Combat Center, CA 34°13′54″ N 116°03′42″ W Buckley AFB, CO 39°42′36″ N 104°45′29″ W Schriever AFB, CO 38°48′12″ N 104°31′32″ W Fort Gordon, GA 33°25′14″ N 082°09′09″ W Naval Satellite Operations Center, GU 13°34′55″ N 144°50′50″ E Naval Computer and Telecomm Area Master Station, Pacific, HI 21°31′16″ N 157°59′57″ W Fort Detrick, MD 39°26′08″ N 077°25′38″ W Nellis AFB, NV 36°14′29″ N 115°03′03″ W Nevada Test Site, NV 38°33′41″ N 116°42′30″ W Tonapah Test Range Airfield, NV 37°47′56″ N 116°46′51″ W Cannon AFB, NM 34°23′23″ N 103°19′06″ W White Sands Missile Range, NM 32°56′38″ N 106°25′11” W Dyess AFB, TX 31°10′10″ N 099°41′01″ W Fort Bliss, TX 31°48′45″ N 106°25′17″ W Fort Sam Houston, TX 29°26′34″ N 098°26′33″ W Goodfellow AFB, TX 31°26′05″ N 100°24′11″ W Kelly AFB, TX 29°22′51″ N 098°34′40″ W Utah Test and Training Range, UT 40°12′00″ N 112°54′00″ W Fort Belvoir, VA 38°43′08″ N 077°09′15″ W Naval Satellite Operations Center, VA 36°34′00″ N 076°14′00″ W [89 FR 33262, Apr. 29, 2024]

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