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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

45.5 - 46.9 GHz
MOBILE
MOBILE-SATELLITE (Earth-to-space)
RADIONAVIGATION-SATELLITE

5.554

U.S. Federal Government Allocations

45.5 - 46.9 GHz
MOBILE
MOBILE-SATELLITE (Earth-to-space)
RADIONAVIGATION-SATELLITE

5.554

ITU Region 1 Allocations

43.5 - 47 GHz
MOBILE 5.553 5.553A
MOBILE-SATELLITE
RADIONAVIGATION
RADIONAVIGATION-SATELLITE

5.554

ITU Region 2 Allocations

43.5 - 47 GHz
MOBILE 5.553 5.553A
MOBILE-SATELLITE
RADIONAVIGATION
RADIONAVIGATION-SATELLITE

5.554

ITU Region 3 Allocations

43.5 - 47 GHz
MOBILE 5.553 5.553A
MOBILE-SATELLITE
RADIONAVIGATION
RADIONAVIGATION-SATELLITE

5.554

SpectrumWiki

Advanced Extremely High Frequency (AEHF) Military Satellite System

802.11/WLAN/Wi-Fi/WiGig

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

Footnotes

5.553 In the bands 43.5-47 GHz and 66-71 GHz, stations in the land mobile service may be operated subject to not causing harmful interference to the space radiocommunication services to which these bands are allocated (see No. 5.43). (WRC 2000)

5.553A In Algeria, Angola, Bahrain, Belarus, Benin, Botswana, Brazil, Burkina Faso, Cabo Verde, Korea (Rep. of), Côte d’Ivoire, Croatia, United Arab Emirates, Estonia, Eswatini, Gabon, Gambia, Ghana, Greece, Guinea, Guinea-Bissau, Hungary, Iran (Islamic Republic of), Iraq, Jordan, Kuwait, Lesotho, Latvia, Liberia, Lithuania, Madagascar, Malawi, Mali, Morocco, Mauritius, Mauritania, Mozambique, Namibia, Niger, Nigeria, Oman, Qatar, Senegal, Seychelles, Sierra Leone, Slovenia, Sudan, South Africa, Sweden, Tanzania, Togo, Tunisia, Zambia and Zimbabwe, the frequency band 45.5-47 GHz is identified for use by administrations wishing to implement the terrestrial component of International Mobile Telecommunications (IMT), taking into account No. 5.553. With respect to the aeronautical mobile service and radionavigation service, the use of this frequency band for the implementation of IMT is subject to agreement obtained under No. 9.21 with concerned administrations and shall not cause harmful interference to, or claim protection from these services. 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. Resolution 244 (WRC 19) applies. (WRC 19)

5.554 In the bands 43.5-47 GHz, 66-71 GHz, 95-100 GHz, 123-130 GHz, 191.8-200 GHz and 252-265 GHz, satellite links connecting land stations at specified fixed points are also authorized when used in conjunction with the mobile-satellite service or the radionavigation-satellite service. (WRC 2000)

SpectrumWiki

Advanced Extremely High Frequency (AEHF) Military Satellite System

802.11/WLAN/Wi-Fi/WiGig

Wireless LANS utilize various channels in the 2.4, 5, and 6 GHz bands (multiple countries), and (in theory) the 3.6 GHz band (U.S. only). For a list of which channels are available in which regions, refer to the Wikipedia article.

Wi-Fi is a trademark permitted for devices that are based upon a published standard of the IEEE 802.11 committee and that have been certified by the Wi-Fi Alliance. Wi-Fi is presently incorporated in about three billion devices. Wireless cash registers were one of the earliest applications of what is now Wi-Fi.

Wi-Fi devices operate on an unlicensed basis, generally meaning they cannot cause interference to licensed services, and must accept any interference caused to them. Wi-Fi shares bands with other unlicensed or ISM devices, such as cordless phones at 2.4 and 5.8 GHz and microwave ovens at 2.4 GHz.

Some of the key patents related to Wi-Fi are credited (in the courts at least) to the Commonwealth Scientific and Industrial Research Organisation (CSIRO) in Australia, which has collected over $400 million in royalties and legal settlements over patent rights.

Frequency Bands
Band	Use	Service	Table
2400 - 2495 MHz	Wireless LANs	-	-
3655 - 3700 MHz	Wireless LANS (U.S. only; standardized but not used)	-	-
4910 - 4990 MHz	Wireless LANs (Japan) (U.S. public safety 4940-4990)	-	-
5030 - 5090 MHz	WLANs (Japan, 2002-2017)	-	-
5150 - 5350 MHz	Wireless LANs (U-NII-1 and U-NII-2A)	-	-
5470 - 5895 MHz	Wireless LANs (U-NII-2C, U-NII-3, U-NII-4)	-	-
5925 - 7125 MHz	Wireless LANs (U-NII-5, U-NII-6, U-NII-7, U-NII-8)	-	-
42.39 - 46.71 GHz	Wireless LANs (WiGig)	-	-
57.24 - 74.52 GHz	Wireless LANs (WiGig)	-	-

External Links:

List of WLAN Channels (Wikipedia)

Wi-Fi Alliance

IEEE 802.11 Committee

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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)

Frequency Bands
Band	Use	Service	Table
37.5 - 42.5 GHz	WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access.	Fixed-satellite	-
42.5 - 43.5 GHz	WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access	Fixed-satellite	-
47.2 - 50.2 GHz	WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access	Fixed-satellite	-
50.4 - 51.4 GHz	WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access	Fixed-satellite	-

External Links:

Resolution 131 (WRC-23)

WRC-27 Agenda (see Annex 1)

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The Very Large Array Radio Telescope

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	43.5 GHz	45.25 GHz	47 GHz
Wavelength	6.9 mm	6.6 mm	6.4 mm
Band designator(s)	EHF (millimeter wave); V-band (IEEE)	EHF (millimeter wave); V-band (IEEE)	EHF (millimeter wave); V-band (IEEE)
Isotropic collecting area	3.8 mm²	3.5 mm²	3.2 mm²
Free space loss (1 m)	65.2 dB	65.6 dB	65.9 dB
Free space loss (1 km)	125.2 dB	125.6 dB	125.9 dB
Free space loss (10 km)	145.2 dB	145.6 dB	145.9 dB
Free space loss (100 km)	165.2 dB	165.6 dB	165.9 dB
Free space loss (1000 km)	185.2 dB	185.6 dB	185.9 dB
Free space loss (35,786 km = GEO orbit)	216.3 dB	216.6 dB	217.0 dB
Free space loss (378,370 km = Moon)	236.8 dB	237.1 dB	237.5 dB