Allocations

 
U.S. Non-Federal-Government Allocations
43.5 - 45.5 GHz


U.S. Federal Government Allocations
43.5 - 45.5 GHz
FIXED-SATELLITE (Earth-to-space)
MOBILE-SATELLITE (Earth-to-space)


ITU Region 1 Allocations
43.5 - 47 GHz
MOBILE 5.553
MOBILE-SATELLITE
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


ITU Region 2 Allocations
43.5 - 47 GHz
MOBILE 5.553
MOBILE-SATELLITE
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


ITU Region 3 Allocations
43.5 - 47 GHz
MOBILE 5.553
MOBILE-SATELLITE
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


SpectrumWiki


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).

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.

G117 In the bands 7.25-7.75 GHz, 7.9-8.4 GHz, 17.3-17.7 GHz, 17.8-21.2 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.

SpectrumWiki

 
Advanced Extremely High Frequency (AEHF) Military Satellite System


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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