U.S. Non-Federal-Government Allocations
FIXED
FIXED-SATELLITE (Earth-to-space) US156
MOBILE
MOBILE-SATELLITE (Earth-to-space)
FCC rule parts
SpectrumWiki
Radio spectrum allocations
Look up a frequency or a range.
Examples: 88.5 MHz, 1350–1430 MHz, 2.4 GHz
50.4 GHz (50,400,000,000 Hz)
U.S. Federal Government Allocations
FIXED
FIXED-SATELLITE (Earth-to-space) US156
MOBILE
MOBILE-SATELLITE (Earth-to-space)
ITU Region 1 Allocations
FIXED
FIXED-SATELLITE (Earth-to-space) 5.338A 5.550C
MOBILE
Mobile-satellite (Earth-to-space)
ITU Region 2 Allocations
FIXED
FIXED-SATELLITE (Earth-to-space) 5.338A 5.550C
MOBILE
Mobile-satellite (Earth-to-space)
ITU Region 3 Allocations
FIXED
FIXED-SATELLITE (Earth-to-space) 5.338A 5.550C
MOBILE
Mobile-satellite (Earth-to-space)
Footnotes
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5.338A In the frequency bands 1 350-1 400 MHz, 1 427-1 452 MHz, 22.55-23.55 GHz, 24.25-27.5 GHz, 30-31.3 GHz, 49.7 50.2 GHz, 50.4-50.9 GHz, 51.4-52.4 GHz, 52.4-52.6 GHz, 81-86 GHz and 92-94 GHz, Resolution 750 (Rev.WRC 19) applies. (WRC 19)
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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)
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G117 In the bands 7.25-7.75 GHz, 7.9-8.4 GHz, 17.375-17.475 GHz, 17.6-21.2 GHz, 30-31 GHz, 33-36 GHz, 39.5-41 GHz, 43.5-45.5 GHz and 50.4-51.4 GHz, the Federal fixed-satellite and mobile-satellite services are limited to military systems.
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NG65 In the bands 24.75-25.25 GHz, 47.2-48.2 GHz, and 50.4-51.4 GHz, stations in the fixed and mobile services may not claim protection from individually licensed earth stations authorized pursuant to 47 CFR 25.136. However, nothing in this footnote shall limit the right of Upper Microwave Flexible Use Service licensees to operate in conformance with the technical rules contained in 47 CFR part 30. The Commission reserves the right to monitor developments and to undertake further action concerning interference between Upper Microwave Flexible Use Service and Fixed-Satellite Service, including aggregate interference to satellite receivers, if appropriate.
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US156 In the bands 49.7-50.2 GHz and 50.4-50.9 GHz, for earth stations in the fixed-satellite service (Earth-to-space), the unwanted emissions power in the band 50.2-50.4 GHz shall not exceed −20 dBW/ 200 MHz (measured at the input of the antenna), except that the maximum unwanted emissions power may be increased to −10 dBW/200 MHz for earth stations having an antenna gain greater than or equal to 57 dBi. These limits apply under clear-sky conditions. During fading conditions, the limits may be exceeded by earth stations when using uplink power control.
Wiki entries
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.6
Proposed Use
50.4–51.4 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);
WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access
Proposed Use
50.4–51.4 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)
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)
WRC-27 study for aeronautical and maritime earth stations in motion for Earth-to-space transmissions
Proposed Use
50.4–51.4 GHz WRC-27 study for aeronautical and maritime earth stations in motion for Earth-to
The following item is on the agenda for WRC-27, agenda item 1.1:
"to consider the technical and operational conditions for the use of the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space), or parts thereof, by aeronautical and maritime earth stations in motion communicating with space stations in the fixed-satellite service and develop regulatory measures, as appropriate, to facilitate the use of the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space), or parts thereof, by aeronautical and maritime earth stations in motion communicating with geostationary space stations and non-geostationary space stations in the fixed-satellite service, in accordance with Resolution 176 (Rev.WRC-23)"
"to consider the technical and operational conditions for the use of the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space), or parts thereof, by aeronautical and maritime earth stations in motion communicating with space stations in the fixed-satellite service and develop regulatory measures, as appropriate, to facilitate the use of the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space), or parts thereof, by aeronautical and maritime earth stations in motion communicating with geostationary space stations and non-geostationary space stations in the fixed-satellite service, in accordance with Resolution 176 (Rev.WRC-23)"