Allocations

 
U.S. Non-Federal-Government Allocations
8400 - 8450 MHz
Space research (deep space)(space-to-Earth)


U.S. Federal Government Allocations
8400 - 8450 MHz
FIXED
SPACE RESEARCH (deep space)(space-to-Earth)


ITU Region 1 Allocations
8400 - 8500 MHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth) 5.465 5.466


ITU Region 2 Allocations
8400 - 8500 MHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth) 5.465 5.466


ITU Region 3 Allocations
8400 - 8500 MHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth) 5.465 5.466


SpectrumWiki


Footnotes


5.465 In the space research service, the use of the band 8400-8450 MHz is limited to deep space.

5.466 Different category of service: in Israel, Singapore and Sri Lanka, the allocation of the band 8400-8500 MHz to the space research service is on a secondary basis (see No. 5.32).

SpectrumWiki

 
NASA Deep Space Network (DSN)
Wideband Global SATCOM (WGS) System
Possible new FSS and maritime mobile-satellite allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
Possible allocations for FSS and maritime mobile-satellite service, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9


Related Documents, Links, and Multimedia:

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 8.4 GHz 8.45 GHz 8.5 GHz
Wavelength 3.6 cm 3.5 cm 3.5 cm
Band designator(s) SHF; X-band (IEEE) SHF; X-band (IEEE) SHF; X-band (IEEE)
Isotropic collecting area 1.0 cm2 1.0 cm2 1.0 cm2
Free space loss (1 m) 50.9 dB 51.0 dB 51.0 dB
Free space loss (1 km) 110.9 dB 111.0 dB 111.0 dB
Free space loss (10 km) 130.9 dB 131.0 dB 131.0 dB
Free space loss (100 km) 150.9 dB 151.0 dB 151.0 dB
Free space loss (1000 km) 170.9 dB 171.0 dB 171.0 dB
Free space loss
(35,786 km = GEO orbit)
202.0 dB 202.1 dB 202.1 dB
Free space loss (378,370 km = Moon) 222.5 dB 222.5 dB 222.6 dB