Allocations

 
U.S. Non-Federal-Government Allocations
47.2 - 48.2 GHz
FIXED
FIXED-SATELLITE (Earth-to-space) US297
MOBILE


U.S. Federal Government Allocations
47 - 48.2 GHz


ITU Region 1 Allocations
47.9 - 48.2 GHz
FIXED
FIXED-SATELLITE (Earth-to-space) 5.552
MOBILE


ITU Region 2 Allocations
47.9 - 48.2 GHz
FIXED
FIXED-SATELLITE (Earth-to-space) 5.552
MOBILE


ITU Region 3 Allocations
47.9 - 48.2 GHz
FIXED
FIXED-SATELLITE (Earth-to-space) 5.552
MOBILE


SpectrumWiki


Footnotes


5.552 The allocation of the spectrum for the fixed-satellite service in the bands 42.5-43.5 GHz and 47.2-50.2 GHz for Earth-to-space transmission is greater than that in the band 37.5-39.5 GHz for space-to-Earth transmission in order to accommodate feeder links to broadcasting satellites. Administrations are urged to take all practicable steps to reserve the band 47.2-49.2 GHz for feeder links for the broadcasting-satellite service operating in the band 40.5-42.5 GHz.

5.552A The allocation to the fixed service in the bands 47.2-47.5 GHz and 47.9-48.2 GHz is designated for use by high altitude platform stations. The use of the bands 47.2-47.5 GHz and 47.9-48.2 GHz is subject to the provisions of Resolution 122 (Rev.WRC-07) (WRC-07)

US297 The bands 47.2-49.2 GHz and 81-82.5 GHz are also available for feeder links for the broadcasting-satellite service.

SpectrumWiki

 
High Altitude Platform Station (HAPS)
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.6
WRC-27 study for aeronautical and maritime earth stations in motion for Earth-to-space transmissions
WRC-27 agenda item regarding technical/regulatory rules for FSS networks for equitable access


Related Documents, Links, and Multimedia:
FCC Proceeding (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 47 GHz 47.6 GHz 48.2 GHz
Wavelength 6.4 mm 6.3 mm 6.2 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 3.2 mm2 3.2 mm2 3.1 mm2
Free space loss (1 m) 66.1 dB 66.0 dB 66.1 dB
Free space loss (1 km) 126.1 dB 126.0 dB 126.1 dB
Free space loss (10 km) 146.1 dB 146.0 dB 146.1 dB
Free space loss (100 km) 166.1 dB 166.0 dB 166.1 dB
Free space loss (1000 km) 186.1 dB 186.0 dB 186.1 dB
Free space loss
(35,786 km = GEO orbit)
217.1 dB 217.1 dB 217.2 dB
Free space loss (378,370 km = Moon) 237.6 dB 237.6 dB 237.7 dB