Allocations

 
U.S. Non-Federal-Government Allocations
7250 - 8025 MHz


U.S. Federal Government Allocations
7450 - 7550 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
METEOROLOGICAL-SATELLITE (space-to-Earth)
Mobile-satellite (space-to-Earth)


ITU Region 1 Allocations
7450 - 7550 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
METEOROLOGICAL-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile


ITU Region 2 Allocations
7450 - 7550 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
METEOROLOGICAL-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile


ITU Region 3 Allocations
7450 - 7550 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
METEOROLOGICAL-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile


SpectrumWiki


Footnotes


5.461A The use of the band 7450-7550 MHz by the meteorological-satellite service (space-to-Earth) is limited to geostationary-satellite systems. Non-geostationary meteorological-satellite systems in this band notified before 30 November 1997 may continue to operate on a primary basis until the end of their lifetime.

G104 In the bands 7450-7550 and 8175-8215 MHz, it is agreed that although the military space radio communication systems, which include earth stations near the proposed meteorological-satellite installations will precede the meteorological-satellite installations, engineering adjustments to either the military or the meteorological-satellite systems or both will be made as mutually required to assure compatible operations of the systems concerned.

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

 
GOES, POES, & MetOp Weather Satellites
Wideband Global SATCOM (WGS) System
Defense Satellite Communication System 3 (DSCS III)
IEEE 802.15.4 HRP UWB
Unlicensed Level Probing Radars
Wideband Systems under 15.250
Possible allocations for FSS and maritime mobile-satellite service, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
Possible new FSS and maritime mobile-satellite allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
Possible new primary EESS allocation (WRC-15 Agenda Item 1.11)
WRC-27 study for potential IMT use


Related Documents, Links, and Multimedia:
FCC Proceeding (2)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 7.25 GHz 7.6375 GHz 8.025 GHz
Wavelength 4.1 cm 3.9 cm 3.7 cm
Band designator(s) SHF; C-band (IEEE) SHF; C-band (IEEE) SHF; X-band (IEEE)
Isotropic collecting area 1.4 cm2 1.2 cm2 1.1 cm2
Free space loss (1 m) 49.9 dB 50.1 dB 50.0 dB
Free space loss (1 km) 109.9 dB 110.1 dB 110.0 dB
Free space loss (10 km) 129.9 dB 130.1 dB 130.0 dB
Free space loss (100 km) 149.9 dB 150.1 dB 150.0 dB
Free space loss (1000 km) 169.9 dB 170.1 dB 170.0 dB
Free space loss
(35,786 km = GEO orbit)
201.0 dB 201.2 dB 201.1 dB
Free space loss (378,370 km = Moon) 221.5 dB 221.7 dB 221.6 dB