Allocations

 
U.S. Non-Federal-Government Allocations
36 - 37 MHz


U.S. Federal Government Allocations
36 - 37 MHz
FIXED
MOBILE


ITU Region 1 Allocations
30.01 - 37.5 MHz
FIXED
MOBILE


ITU Region 2 Allocations
30.01 - 37.5 MHz
FIXED
MOBILE


ITU Region 3 Allocations
30.01 - 37.5 MHz
FIXED
MOBILE


SpectrumWiki



Footnotes

US220   The frequencies 36.25 and 41.71 MHz may be authorized to Federal stations and non-Federal stations in the petroleum radio service, for oil spill containment and cleanup operations. The use of these frequencies for oil spill containment or cleanup operations is limited to the inland and coastal waterway regions.


SpectrumWiki

 
Public Safety
Federal Government fixed/mobile
Paging and Radiotelephone Service
History of the Beep
Single Channel Ground and Airborne Radio System (SINCGARS)
Radio Astronomy (38 MHz)
Access Broadband over Power Line (Access BPL)
Experimental Ultra-Wideband (UWB) Systems




Related Documents, Links, and Multimedia:
Occupancy Measurements (10)
Other (1)




Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 30.01 MHz 33.755 MHz 37.5 MHz
Wavelength 10.0 m 8.9 m 8.0 m
Band designator(s) VHF VHF VHF
Isotropic collecting area 7.9 m2 6.3 m2 5.1 m2
Free space loss (1 m) 2.0 dB 3.0 dB 3.9 dB
Free space loss (1 km) 62.0 dB 63.0 dB 63.9 dB
Free space loss (10 km) 82.0 dB 83.0 dB 83.9 dB
Free space loss (100 km) 102.0 dB 103.0 dB 103.9 dB
Free space loss (1000 km) 122.0 dB 123.0 dB 123.9 dB
Free space loss
(35,786 km = GEO orbit)
153.1 dB 154.1 dB 155.0 dB
Free space loss (378,370 km = Moon) 173.6 dB 174.6 dB 175.5 dB
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