Allocations

 
U.S. Non-Federal-Government Allocations
1435 - 1525 MHz
MOBILE (aeronautical telemetry) US338A

FCC Rule Parts:
Aviation (87)

U.S. Federal Government Allocations
1435 - 1525 MHz
MOBILE (aeronautical telemetry) US338A


ITU Region 1 Allocations
1492 - 1518 MHz
FIXED
MOBILE except aeronautical mobile


ITU Region 2 Allocations
1492 - 1518 MHz
FIXED
MOBILE 5.343


ITU Region 3 Allocations
1492 - 1518 MHz
FIXED
MOBILE


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Footnotes


5.341 In the bands 1400-1727 MHz, 101-120 GHz and 197-220 GHz, passive research is being conducted by some countries in a programme for the search for intentional emissions of extraterrestrial origin.

5.342 Additional allocation: in Armenia, Azerbaijan, Belarus, the Russian Federation, Uzbekistan, Kyrgyzstan and Ukraine, the band 1429-1535 MHz, and in Bulgaria the band 1525-1535 MHz, are also allocated to the aeronautical mobile service on a primary basis exclusively for the purposes of aeronautical telemetry within the national territory. As of 1 April 2007, the use of the band 1452-1492 MHz is subject to agreement between the administrations concerned. (WRC-12)

5.343 In Region 2, the use of the band 1435-1535 MHz by the aeronautical mobile service for telemetry has priority over other uses by the mobile service.

5.344 Alternative allocation: in the United States, the band 1452-1525 MHz is allocated to the fixed and mobile services on a primary basis (see also No. 5.343).

US338A In the band 1435-1452 MHz, operators of aeronautical telemetry stations are encouraged to take all reasonable steps to ensure that the unwanted emissions power does not exceed -28 dBW/27 MHz in the band 1400-1427 MHz. Operators of aeronautical telemetry stations that do not meet this limit shall first attempt to operate in the band 1452-1525 MHz prior to operating in the band 1435-1452 MHz.

US343 In the mobile service, the frequencies between 1435 and 1525 MHz will be assigned for aeronautical telemetry and associated telecommand operations for flight testing of manned or unmanned aircraft and missiles, or their major components. Permissible usage includes telemetry associated with launching and reentry into the Earth’s atmosphere as well as any incidental orbiting prior to reentry of manned objects undergoing flight tests. The following frequencies are shared on a co-equal basis with flight telemetering mobile stations: 1444.5, 1453.5, 1501.5, 1515.5, and 1524.5 MHz.

US84 In the band 1435-1525 MHz, low power auxiliary stations may be authorized on a secondary basis, subject to the terms and conditions set forth in 47 CFR part 74, subpart H.

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Inmarsat
Standard LTE Bands


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Occupancy Measurements (10)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 1435 MHz 1480 MHz 1525 MHz
Wavelength 20.9 cm 20.3 cm 19.7 cm
Band designator(s) UHF; L-band (IEEE) UHF; L-band (IEEE) UHF; L-band (IEEE)
Isotropic collecting area 34.7 cm2 32.7 cm2 30.8 cm2
Free space loss (1 m) 35.9 dB 35.9 dB 36.1 dB
Free space loss (1 km) 95.9 dB 95.9 dB 96.1 dB
Free space loss (10 km) 115.9 dB 115.9 dB 116.1 dB
Free space loss (100 km) 135.9 dB 135.9 dB 136.1 dB
Free space loss (1000 km) 155.9 dB 155.9 dB 156.1 dB
Free space loss
(35,786 km = GEO orbit)
187.0 dB 186.9 dB 187.1 dB
Free space loss (378,370 km = Moon) 207.5 dB 207.4 dB 207.6 dB