Allocations

 
U.S. Non-Federal-Government Allocations
2850 - 3025 kHz
AERONAUTICAL MOBILE (R)

FCC Rule Parts:
Aviation (87)

U.S. Federal Government Allocations
2850 - 3025 kHz
AERONAUTICAL MOBILE (R)


ITU Region 1 Allocations
2850 - 3025 kHz
AERONAUTICAL MOBILE (R)


ITU Region 2 Allocations
2850 - 3025 kHz
AERONAUTICAL MOBILE (R)


ITU Region 3 Allocations
2850 - 3025 kHz
AERONAUTICAL MOBILE (R)


SpectrumWiki


Footnotes


5.111 The carrier frequencies 2182 kHz, 3023 kHz, 5680 kHz, 8364 kHz and the frequencies 121.5 MHz, 156.525 MHz, 156.8 MHz and 243 MHz may also be used, in accordance with the procedures in force for terrestrial radiocommunication services, for search and rescue operations concerning manned space vehicles. The conditions for the use of the frequencies are prescribed in Article 31.

The same applies to the frequencies 10003 kHz, 14993 kHz and 19993 kHz, but in each of these cases emissions must be confined in a band of +/- 3 kHz about the frequency. (WRC-07)

5.115 The carrier (reference) frequencies 3023 kHz and 5680 kHz may also be used, in accordance with Article 31, by stations of the maritime mobile service engaged in coordinated search and rescue operations. (WRC-07)

US283 In the bands 2850-3025 kHz, 3400-3500 kHz, 4650-4700 kHz, 5450-5680 kHz, 6525-6685 kHz, 10005-10100 kHz, 11275-11400 kHz, 13260-13360 kHz, and 17900-17970 kHz, frequencies may be authorized for non-Federal flight test purposes on the condition that harmful interference will not be caused to services operating in accordance with the Table of Frequency Allocations.

US340 The band 2-30 MHz is available on a non-interference basis to Federal and non-Federal maritime and aeronautical stations for the purposes of measuring the quality of reception on radio channels. See 47 CFR 87.149 for the list of protected frequencies and bands within this frequency range. Actual communications shall be limited to those frequencies specifically allocated to the maritime mobile and aeronautical mobile services.


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Access Broadband over Power Line (Access BPL)


Related Documents, Links, and Multimedia:
FCC Proceeding (8)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 2850 kHz 2937.5 kHz 3025 kHz
Wavelength 105.2 m 102.1 m 99.1 m
Band designator(s) MF MF HF
Isotropic collecting area 880.5 m2 828.8 m2 781.6 m2
Free space loss (1 m) N/A (near field) N/A (near field) N/A (near field)
Free space loss (1 km) 41.5 dB 41.8 dB 42.1 dB
Free space loss (10 km) 61.5 dB 61.8 dB 62.1 dB
Free space loss (100 km) 81.5 dB 81.8 dB 82.1 dB
Free space loss (1000 km) 101.5 dB 101.8 dB 102.1 dB
Free space loss
(35,786 km = GEO orbit)
132.6 dB 132.9 dB 133.1 dB
Free space loss (378,370 km = Moon) 153.1 dB 153.4 dB 153.6 dB