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SpectrumWiki

Radio spectrum allocations

Look up a frequency or a range.

Examples: 88.5 MHz, 1350–1430 MHz, 2.4 GHz

37.5 GHz (37,500,000,000 Hz)

U.S. Federal Government Allocations

37 – 38 GHz

FIXED

MOBILE except aeronautical mobile

SPACE RESEARCH (space-to-Earth)

US151

ITU Region 1 Allocations

37.5 – 38 GHz

FIXED

FIXED-SATELLITE (space-to-Earth) 5.550C

MOBILE except aeronautical mobile 5.550B

SPACE RESEARCH (space-to-Earth)

Earth exploration-satellite (space-to-Earth)

5.547

ITU Region 2 Allocations

37.5 – 38 GHz

FIXED

FIXED-SATELLITE (space-to-Earth) 5.550C

MOBILE except aeronautical mobile 5.550B

SPACE RESEARCH (space-to-Earth)

Earth exploration-satellite (space-to-Earth)

5.547

ITU Region 3 Allocations

37.5 – 38 GHz

FIXED

FIXED-SATELLITE (space-to-Earth) 5.550C

MOBILE except aeronautical mobile 5.550B

SPACE RESEARCH (space-to-Earth)

Earth exploration-satellite (space-to-Earth)

5.547

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-2000)*). 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. *This resolution was revised by WRC-12. (WRC 07)

  • 5.550B   The frequency band 37-43.5 GHz, or portions thereof, is identified for use by administrations wishing to implement the terrestrial component of International Mobile Telecommunications (IMT). This identification does not preclude the use of this frequency band by any application of the services to which it is allocated and does not establish priority in the Radio Regulations. Because of the potential deployment of FSS earth stations within the frequency range 37.5-42.5 GHz and high-density applications in the fixed-satellite service in the frequency bands 39.5-40 GHz in Region 1, 40-40.5 GHz in all Regions and 40.5-42 GHz in Region 2 (see No. 5.516B), administrations should further take into account potential constraints to IMT in these frequency bands, as appropriate. Resolution 243 (WRC 19) applies. (WRC 19)

  • 5.550C   The use of the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space to Earth), 47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space) by a non-geostationary satellite system in the fixed-satellite service is subject to the application of the provisions of No. 9.12 for coordination with other non-geostationary-satellite systems in the fixed-satellite service but not with non-geostationary-satellite systems in other services. Resolution 770 (WRC 19) shall also apply, and No. 22.2 shall continue to apply. (WRC 19)

  • NG63  In the band 37.5-40 GHz, earth station operations in the fixed-satellite service (space-to-Earth) shall not claim protection from stations in the fixed and mobile services, except where individually licensed earth stations are authorized pursuant to 47 CFR § 25.136.

  • 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.

Wiki entries

2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.6

Proposed Use 37.5–42.5 GHz WRC-19 Agenda Item 1.6
1.6 to consider the development of a regulatory framework for non-GSO FSS satellite systems that may operate in the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space-to-Earth), 47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space), in accordance with Resolution 159 [COM6/18] (WRC-15);

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

Proposed Use 37.5–39.5 GHz WRC-23 Agenda Item 2.4
2.4 study of spectrum needs and possible new allocations to the fixed-satellite service in the frequency band 37.5-39.5 GHz (Earth-to-space), in accordance with Resolution 161 (WRC-15);

WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access

Proposed Use 37.5–42.5 GHz WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access.
WRC agenda item 1.6:

to consider technical and regulatory measures for fixed-satellite service satellite networks/systems in the frequency bands 37.5-42.5 GHz (space-to-Earth), 42.5-43.5 GHz (Earth-to-space), 47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space) for equitable access to these frequency bands, in accordance with Resolution 131 (WRC-23)