Allocations

 
U.S. Non-Federal-Government Allocations
37 - 37.5 GHz
FIXED
MOBILE


U.S. Federal Government Allocations
37 - 38 GHz
FIXED
MOBILE
SPACE RESEARCH (space-to-Earth)


ITU Region 1 Allocations
37 - 37.5 GHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth)


ITU Region 2 Allocations
37 - 37.5 GHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth)


ITU Region 3 Allocations
37 - 37.5 GHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth)


SpectrumWiki


Footnotes


5.547 The bands 31.8-33.4 GHz, 37-40 GHz, 40.5-43.5 GHz, 51.4-52.6 GHz, 55.78-59 GHz and 64-66 GHz are available for high-density applications in the fixed service (see Resolution 75 (WRC-12)). Administrations should take this into account when considering regulatory provisions in relation to these bands. Because of the potential deployment of high-density applications in the fixed-satellite service in the bands 39.5-40 GHz and 40.5-42 GHz (see No. 5.516B), administrations should further take into account potential constraints to high-density applications in the fixed service, as appropriate. (FCC)

US151 In the band 37-38 GHz, stations in the fixed and mobile services shall not cause harmful interference to Federal earth stations in the space research service (space-to-Earth) at the following sites: Goldstone, CA; Socorro, NM; and White Sands, NM. Applications for non-Federal use of this band shall be coordinated with NTIA in accordance with 47 CFR 30.205.

SpectrumWiki

 
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.6
2023 World Radiocommunication Conference (WRC-23) Preliminary Agenda Item 2.4


Related Documents, Links, and Multimedia:
FCC Proceeding (4)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 37 GHz 37.5 GHz 38 GHz
Wavelength 8.1 mm 8.0 mm 7.9 mm
Band designator(s) EHF (millimeter wave); Ka-band (IEEE) EHF (millimeter wave); Ka-band (IEEE) EHF (millimeter wave); Ka-band (IEEE)
Isotropic collecting area 5.2 mm2 5.1 mm2 5.0 mm2
Free space loss (1 m) 63.8 dB 63.9 dB 63.9 dB
Free space loss (1 km) 123.8 dB 123.9 dB 123.9 dB
Free space loss (10 km) 143.8 dB 143.9 dB 143.9 dB
Free space loss (100 km) 163.8 dB 163.9 dB 163.9 dB
Free space loss (1000 km) 183.8 dB 183.9 dB 183.9 dB
Free space loss
(35,786 km = GEO orbit)
214.9 dB 215.0 dB 215.0 dB
Free space loss (378,370 km = Moon) 235.4 dB 235.5 dB 235.5 dB