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power flux density at the earth's surface shall In no case exceed -150 dBW/m per 4 kHz for all angles of arrival.
US308 In the frequency bands 1549.5— 1568.5 MHz and 1651—1660 MHz, the Aeronautlcal-Mobile-Satelllte (R) requirements that cannot be accommodated in the 15451549.5 MHz, 1558.5-1559 MHz. 1646.5-1651 MHz and 1680-1660.5 MHz bands shall have priority access with real-time preemptive capability for communications in the mobile satellte service. Systems not Interoperable with the aeronautical mobile-satellite (R) service (hall operate on a secondary basis. Account shall be taken of the priority of safety-related communications in the mobile-satellite service.
US309 Transmissions in the bands 15451559 MHz from terrestrial aeronautical stations directly to aircraft stations, or between aircraft stations, in the aeronautical mobile (R) service are also authorized when such transmissions are used to extend or supplement the satelllte-to-aircraft links. Transmissions In the band 1646.5-1660.5 MHz from aircraft stations in the aeronautical mobile (R) service directly to terrestrial aeronautical stations, or between aircraft stations, are also authorized when such transmissions are used to extend or supplement the aircraft-to-satellite links.
US310 In the band 14.896-15.121 GHz. nonGovernment space stations in the space research service may be authorized on a secondary basis to transmit to Tracking: and Data Relay Satellites subject to such conditions as may be applied on a case-by-case basis. Such transmissions shall not cause harmful interference to authorized Government stations. The power flux density at the earth's surface from such non-Government stations shall not exceed -138 to -148 dBW/ m*. kHz. depending- on the angle of arrival, in accordance with CCIR Recommendation 5101.
US311—Radio astronomy observations may be made In the 1350-1400 MHz band on an unprotected basis at certain Radio Astronomy Observatories indicated below: National Astronomy and Ionosphere Center, Arecibo, Puerto Rico Rectangle between latitudes 17° 30' N and 19" W N and between longitudes 65° 10* W and 68° Of/ W. National Radio Astronomy Observatory, Socorro, New Mexico Rectangle between latitudes 32° 30' N and 35° 30* N and between longitudes 106° 00- W and 109° 00/ W. National Radio Astronomy Observatory, Green Bank, West Virginia Rectangle between latitudes 37° 30' N and 39° 15' N and between longitudes 78° 3C W and 80° 3C W.
Every practicable effort will be made to avoid the assignment of frequencies in the band 1350-1400 MHz to stations in the fixed and mobile services which could Interfere with radio astronomy observations within the geographic areas.
US312 The frequency 173.075 MHz may also be authorized on a primary basis to nonGovernment stations in the Police Radio Service (with a maximum authorized bandwidth of 20 kHz) for stolen vehicle recovery systems.
US315 In the frequency bands 1530-1544 MHz and 1626.5-1645.5 MHz maritime mobilesatellite distress and safety communications, e.g., GMDSS, shall have priority access with real-time preemptive capability in the mobile-satellite service. Communications of mobile-satellite system stations not participating in the GMDSS shall operate on a secondary basis to distress and safety communications of stations operating in the GMDSS. Account shall be taken of the priority of safety-related communications in the mobile-satellite service.
US316 The band 2900-3100 MHz Is also allocated on a primary basis to the Meteorological Aids Service. Operations In this service are limited to Government Next Generation Weather Radar (NEXRAD) systems where accommodation in the 2700-2900 MHz band is not technically practical and are subject to coordination with existing authorized stations."
US317 The band 218.0-219.0 MHz is allocated on a primary basis to the Interactive Video and Data operations.
US321 The 535-1705 kHz band Is also allocated to the mobile service on a secondary basis for the distribution of public service Information from Travelers Information Stations operating on 10 kHz spaced channels from 540 to 1700 kHz.
US330 In the frequency bands 901-902 MHz, 930-931 MHz, and 940-941 MHz. the only fixed services permitted are ancillary services used In support of mobile personal communications services.
Non-government (NG) Footnotes
(These footnotes, each consisting of the letters "NG" followed by one or more digits, denote stipulations applicable only to the non-Government.)
NG2 Facsimile broadcasting stations may be authorized In the band 88-106 MHz.
NG3 Control stations in the domestic public mobile radio service may be authorized frequencies in the band 72-73 and 75.4-76 MHz on the condition that harmful Interference will not be caused to operational fixed stations.
NG4 The use of the frequencies In the band 152.84-153.38 MHz may be authorized, in any area, to remote pickup broadcast base and mobile stations on the condition that harmful interference will not be caused to stations operating In accordance with the Table of Frequency Allocations.
NG6 Stations in the public safety radio services authorized as of June 30, 1958, to use frequencies in the band 159.51-161.79 MHz in areas other than Puerto Rico and the Virgin Islands may continue such operation, including expansion of existing systems, on the condition that harmful Interference will not be caused to stations In the services to which these bands are allocated. In Puerto Rico and the Virgin Islands this authority is limited to frequencies In the band 160.05-161.37 MHz. No new public radio service system will be authorized to operate on these frequencies.
NG12 Frequencies in the bands 454.40-455 MHz and 459.40-460 MHz may be assigned to domestic public land and mobile stations to provide a two-way air-ground public radiotelephone service.
NG17 Stations in the land transportation radio services authorized as of May 15. 1958 to operate on the frequency 161.61 MHz may, upon proper application, continue to be authorized for such operation, including expansion of existing systems, on the condition that harmful interference will not be caused to the operation of any authorized station in the maritime mobile service. No new land transportation radio service system will be authorized to operate on 161.61 MHz.
NG19 Fixed stations associated with the maritime mobile service may be authorized, for purposes of communication with coast stations, to use frequencies assignable to ship stations in this band on the condition that harmful Interference will not be caused to services operating in accordance with the Table of Frequency Allocations.
NG23 Frequencies in the band 2100-2200 MHz may also be assigned to stations in the international fixed public radio service located south of 25*30* north latitutde in the State of Florida and In U.S. Possessions In the Caribbean area, provided, however, no new assignments In the band 2150-2162 MHz
will be made to such stations after Febrain 25.1974.
NG28 The frequency band 160.86-I6i.fc MHz is available for assignment to remot* pickup base and remote pickup mobile rations in Puerto Rico and the Virgin Islands only on a shared basis with the land tnntportation radio service.
NG30 Stations in the international flxtd public radlocommunication service In Florida, south of 25*30* north latitude, may be authorized to use frequencies in the band 71*890 MHz on the condition that harmful interference will not be caused to the broadcasting service of any country. This is an Interim allocation the termination of which will later be specified by the Commlssloc when it is determined that equipments si* generally available for use in bands allocated internationally to the fixed service.
NG31 Stations in the Rural Radio Service licensed for Basic Exchange Telecommunications Radio Service may be authorised to use some frequencies In the bands SM-OD MHz (fixed subscriber) and 861-865 MR: (central office or base), on a co-primary bull with private land mobile radio licensee*, pursuant to part 22 subpart H.
NG41 Frequencies In the bands 3700-Ofc MHz. 5925-6425 MHz. and 10.7-11.7 GHi ma; also be assigned to stations In the international fixed public and international control services located in U.S. Possessions la the Caribbean area.
NG42 Non-Government stations In tit radiolocation service shall not cause harmful interference to the amateur service.
NG43 Fixed stations in the domestic public radio services In Alaska, south of St north latitude and east of 134* west longitude, may be authorized to use frequencies in the band 800-830 MHz. on the condition that harmful interference will not be caused to the broadcasting service of any country.
NG47 In Alaska frequencies between riband 2855-2690 MHz are not available for assignment to terrestrial stations.
NG49 The following frequencies may be authorized for mobile operations in the Mac ufacturers Radio Service subject to the condition that no interference is caused to tb* reception of television stations operating or channels 4 and 5 and that their use is limited to a manufacturing facility:
NO61 In Puerto Rico and the Virgin Islands only, the bands 150.8-150.96 MHz and 160.98-151.49 MHz are allocated exclusively to the business radio service.
NO53 In the band 13.7-13.15 GHz. television pickup stations and CARS pickup stations shall be assigned channels on a coequal basis and shall operate on a secondary basis to fixed stations operating in accordance with the Table of Frequency Allocations. In the 13.15-13.30 GHz band television pickup stations and CARS pickup stations shall be assigned on an exclusive basis in the top one hundred markets, as set out In Section 76JU.
NO56 In the bands 73.0-73.0 and 75.4-76.0 MHz, the use of mobile radio remote control of models is on a secondary basis to all other fixed and mobile operations. Such operations are subject to the condition that interference will not be caused to common carrier domestic public stations, to remote control of industrial equipment operating in the 7276 MHz band, or to the reception of television signal on channels 4 (66-73 MHz) or 6 (76-82 MHz). Television interference shall be considered to occur whenever reception of regularly used television signals Is impaired or destroyed, regardless of the strength of the television signal or the distance to the television station.
NO59 The frequencies 37.60 and 37.85 MHz may be authorized only for use by base, mobile, and operational fixed stations participating in an interconnected or coordinated power service utility system.
NO63 Television Broadcast translator stations holding valid licenses on November 15, 1971. to operate in the frequency band 806-890 MHz (channels 70-83), may continue to operate In this band, pursuant to periodic license renewals, on a secondary basis to the land mobile radio service.
NG66 The frequency band 470-512 MHz Is allocated for use In the broadcasting and land mobile radio services. In the land mobile services it Is available for assignment in the domestic public, public safety, indus
NG70 In Puerto Rico and the Virgin Islands only, the bands 159.340-159.435 and 160.410-160.620 MHz are also available for assignment to base stations and mobile stations In the special Industrial radio service.
NO101 The use of the band 2500-2690 MHz by the broadcasting-satellite service is limited to domestic and regional systems for community reception of educational television programming and public service information. Such use is subject to agreement among administrations concerned and those having services operating In accordance with the table, which may be affected. Unless such agreement include* the use of higher values, the power flux density at the earth's surface produced by emissions from a space station in this service shall not exceed those values set forth in Part 73 of the rules for this frequency band.
NG102 The frequency bands 2500-2665 MHz (space-to-earth) and 2666-2690 MHz (earth-tospace) are allocated for use in the fixed-satellite service as follows:
(a) For common carrier use In Alaska, for intra-Alaska service only, and In the mid and western Pacific areas Including American Samoa, the Trust Territory of the Pacific Islands, Guam and Hawaii;
(b) For educational use in the contiguous United States. Alaska and the mid and western Pacific area* including American Samoa, the Trust Territory of the Pacific Islands, Guam and Hawaii.
Such use Is subject to agreement with administrations having services operating in accordance with the table, which may be affected. In the band 2500-2655 MHz, unless such agreement Includes the use of higher values, the power flux density at the earth'* surface produced by emissions from a space
station In this service shall not exceed the values set forth In Part 25 of the Rules for this frequency band.
NG104 The use of the bands 10.7-11.7 and 12.75-13.25 GHz In the fixed-satellite service is limited to International systems, i.e.. other than domestic systems.
NGlll The band 157.4375-157.4625 MHz may be used for one way paging operations In the special emergency radio service.
NG112 The frequencies 25.04. 25.08. 150.960. 154.585.168.445. 159.480. 454.000 and 459.000 MHz may be authorized to stations In the petroleum radio service for use primarily in oil spill containment and cleanup operations and secondarily In regular land mobile communication.
NG114 In the Gulf of Mexico offshore from the Louisiana-Texas coast, the frequency band 476-494 MHz (TV channels 16. 16 and 17) Is allocated to the Domestic Public and Private Land Mobile Radio Services in accordance with the regulations set forth in Parts 22 and 90 respectively.
NG115 In the 174 to 216 MHz band wireless microphones may be authorized to operate on a secondary, non-Interfering basis, subject to terms and conditions set forth in Part 74 of these Rules and Regulations.
NG117 The frequency 156.050 and 156.175 MHz may be assigned to stations in the maritime mobile service for commercial and port operations in the New Orleans Vessel Traffic Service (VTS) area and the frequency 156.250 MHz may be assigned to stations In the maritime mobile service for port operating in the New Orleans and Houston VTS areas.
NG118 Television translator relay stations may be authorized to use frequencies in this band on a secondary basis to stations operating in accordance with the Table of Frequency Allocations.
NG120 Frequencies In the 928-960 MHz band may be assigned for multiple address systems and mobile operations on a primary basis as specified In Part 94 of this chapter.
NG124 In the public safety radio service allocations within the bands 30-60 MHz, 150174 MHz and 450-470 MHz. police radio service licenses are authorized to operate low powered radio transmitters on a secondary, noninterference basis in accordance with the provisions of Sections 2.803 and 90.19(fX5) of the Rules.
NG127 In Hawaii, the frequency band 488494 MHz Is allocated exclusively to the fixed service for use by common carrier control and repeater stations for point-to-point inter-island communications only.
NG128 In the 535-1705 kHz band, AM broadcast licensees or permittees may use their AM carrier on a secondary basis to transmit signals intended for both broadcast and nonbroadcast purposes. In the 88-108 MHz band. FM broadcast licensees or permittees are permitted to use subcarrlers on a secondary basis to transmit signals intended for both
broadcast and non-broadcast purposes. In tt# 54-72. 76-88. 174-216 and 740-880 MHz ban*. TV broadcast licensees or permittees are permitted to use subcarrlers on a secoccar: basis for both broadcast and non-broadca*t purposes.
NG129 In Alaska, the bands 76-88 MHx a:: 88-100 MHz are also allocated to the Fixed service on a secondary basis. Broadcast stations operating In these bands shall no: cause Interference to non-Government flxn: operations authorized prior to January 1982.
NG133 Stations authorized In the band *>
74.6 MHz as of December 1. 1961 may cooUzct to operate until December 31, 1985. Such stations shall not be required to afford protection to radio astronomy observations withls the United States and possessions, howert? such stations must afford protection to tat observatories of other countries.
NG134 In the band 10.45-10.5 GHz non-G: eminent stations In the radiolocation seme* shall not cause harmful Interference to -.amateur and amateur-satellite services.
NG135 In the 420-430 MHz band the amateur service is not allocated north of line A (def. |2.1).
NG139 Pending adopting of further specific rules concerning usage of the band li>
12.7 GHz by the fixed and broadcastlng-ati elllte services, systems In these services ma? be authorized subject to the condition thu adjustments in certain systems design or technical parameters may become necesaarj during the systems lifetime. The neoeact; for such adjustments, and their extent, wil be dependent upon the Final Acts of the 18K Regional Administrative Radio Confer*: • and subsequent Commission decisions.
NG140 Pending adopting of further specific rules concerning usage of the band IT>
17.8 GHz by the fixed-satellite service for tie purpose of providing feeder links to thi broadcasting-satellite service, systems mar be authorized for this purpose subject to tht condition that adjustments In certain systems design or technical parameters may income necessary during the system llfetlcw The necessity for such adjustments, and their extent, will be dependent upon tt* Final Acts of the 1983 Regional Admlnlstrv tlve Radio Conference and subsequent Corr mission decisions.
NG141 The frequencies 42.40 MHz and ft It MHz are authorized on a primary basis In tt» State of Alaska for meteor burst comrns nlcatlons by fixed stations in the RorsJ Radio Service operating under the provlsioo of Part 22 of this Chapter. The frequencM 44.20 MHz and 45.90 MHz are authorized on • primary basis in Alaska for meteor burr, communications by fixed private radio stations operating under the provisions of Pan 90 of the Chapter. The private radio staUco frequencies may be used by Common Carrier stations on a secondary, nonlnttrfereoa basis and the Common Carrier frequencies may be used by private radio stations for meteor burst communications on a secondary, noninterference basis. Users shall cooperate to the extent practical to minimise potential Interference. Stations utilizing meteor burst communications shall not cause harmful interference to stations of other radio services operating in accordance with the Table of Frequency Allocations.
NG142 TV broadcast stations authorized to operate In the bands 54-72. 76-88, 174-216, 470512, and 512-806 MHz may use a portion of the television vertical blanking interval for the transmission of telecommunications signals, on the condition that harmful interference will not be caused to the reception of primary services, and that such telecommunications services must accept any Interference caused by primary services operating In these bands.
NO143 In the band 11.7-12.2 GHz protection from harmful Interference shall be afforded to transmissions from space stations not In conformance with International footnote 839 only If the operations of such space stations impose no unacceptable constraints on operations or orbit locations of space stations In conformance with 839.
NGH4 Stations authorized as of September 9,1983 to use frequencies in the band 17.719.7 GHz may. upon proper application, continue to be authorized for such operation.
NG145 In the band 11.7-12.2 GHz. transponders on space stations in the fixed-satellite service may be used additionally for transmissions In the broadcasting-satellite service, provided that such transmissions do not have a maximum e.l.r.p. greater than 53 JBW per television channel and do not cause greater interference or require more protection from interference than the coordinated fixed-satellite service frequency assignments. With respect to the space services, this band shall be used principally for the fixed-satellite service.
NG147 Stations in the broadcast auxiliary service and private radio services licensed as of July 25. 1985, or on a subsequent date following as a result of submitting an application for license on or before July 26, 1965, may continue to operate on a primary basis with the radlodetermlnatlon satellite service.
NG148 The frequencies 154.585 MHz, 159.480 MHz, 160.725 MHz, 160.785 MHz. 454.000 MHz and 459.000 MHz may be authorized to maritime mobile stations for offshore radiolocation and associated telecommand operations.
NQ149 The frequency bands 54-72 MHz. 7688 MHz. 174-216 MHz. 470-512 MHz. 512-608 MHz, and 614-806 MHZ are also allocated to the Fixed Service to permit subscription television operations in accordance with Part 73 of the rules.
NO151 In the frequency bands 824-849 MHz and 869-894 MHz, cellular land mobile licensees are permitted to offer auxiliary service* on a secondary basis subject to the provisions of part 22.
N0153 The 1850-1990 MHz. 2110-2150 MHz, and 2160-2200 MHz bands are reserved for future emerging technologies on a coprimary basis with the fixed and mobile services. Allocations to specific services will be made in future proceedings.
Government (O) Footnotes
(These footnotes, each consisting of the letter "O" followed by one or more digits, denote stipulations applicable only to the Government.)
O2 In the bands 216-225, 420-450 (except as provided by US217) 890-802. 928-942. 1300-1400. 2300-2450. 2700-2900. 5650-5925 and 900-9200 MHz, the Government radiolocation is limited to the military services.
OS In the bands 162.0125-173.2. 173.4-174. 406.1-410 and 410-420 MHz. the fixed and mobile services are all allocated on a primary basis to the Government non-military agencies.
G6 Military tactical fixed and mobile operations may be conducted nationally on a secondary basis: (1) To the meteorological aids service in the band 403-406 MHz; and (2) to the radio astronomy service in the band 406.1-410 MHz. Such fixed and mobile operations are subject to local coordination to ensure that harmful interference will not be caused to the services to which the bands are allocated.
G6 Low power Government radio control operations are permitted In the band 420-450 MHz.
Gil Government fixed and mobile radio services, including low power radio control operations, are permitted in the band 902-928 MHz on a secondary basis.
G15 Use of the band 2700-2900 MHz by the military fixed and shlpborne air defense radiolocation Installations will be fully coordinated with the meteorological aids and aeronautical radionavigation services. The military air defense installations will be moved from the band 2700-2900 MHz at the earliest practicable date. Until such time as military air defense Installations can be accommodated satisfactorily elsewhere in the spectrum, such operations will, insofar as practicable, be adjusted to meet the requirements of the aeronautical radionavigation service.
G19 Use of the band 9000-9200 MHz by military fixed and shlpborne air defense radiolocation installations will be fully coordinated with the aeronautical radionavigation service, recognizing fully the safety aspects of the latter. Military air defense Installations will be accommodated ultimately outside this band. Until such time as military defense Installations can be accommodated