Allocations

 
U.S. Non-Federal-Government Allocations
3700 - 4200 MHz
FIXED
FIXED-SATELLITE (space-to-Earth) NG180


U.S. Federal Government Allocations
3700 - 4200 MHz


ITU Region 1 Allocations
3600 - 4200 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
Mobile


ITU Region 2 Allocations
3700 - 4200 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile


ITU Region 3 Allocations
3700 - 4200 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile


SpectrumWiki


Footnotes


NG180 In the band 3700-4200 MHz (space-to-Earth) earth stations on vessels (ESVs) may be authorized to communicate with space stations of the fixed-satellite service and, while docked, may be coordinated for up to 180 days, renewable. ESVs in motion must operate on a secondary basis.

SpectrumWiki

 
Aeronautical Radio Altimeters
4 GHz Fixed Service Band
Geostationary Fixed Satellite Service (GSO FSS)
Citizens Broadband Radio Service (CBRS)
Wi-Fi
Common Carrier Fixed Point-to-Point Microwave
Standard LTE Bands
UK Broadband
FCC Proposed Rules for Citizens Broadband Service
SPN-43 Shipborne Radar
Actions to support FSS Earth stations in 3400-4200 MHz (WRC-15 Agenda Item 9.1.5)


Related Documents, Links, and Multimedia:
FCC Proceeding (4)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 3.6 GHz 3.9 GHz 4.2 GHz
Wavelength 8.3 cm 7.7 cm 7.1 cm
Band designator(s) SHF; S-band (IEEE) SHF; S-band (IEEE) SHF; C-band (IEEE)
Isotropic collecting area 5.5 cm2 4.7 cm2 4.1 cm2
Free space loss (1 m) 43.8 dB 44.3 dB 44.9 dB
Free space loss (1 km) 103.8 dB 104.3 dB 104.9 dB
Free space loss (10 km) 123.8 dB 124.3 dB 124.9 dB
Free space loss (100 km) 143.8 dB 144.3 dB 144.9 dB
Free space loss (1000 km) 163.8 dB 164.3 dB 164.9 dB
Free space loss
(35,786 km = GEO orbit)
194.9 dB 195.3 dB 196.0 dB
Free space loss (378,370 km = Moon) 215.4 dB 215.8 dB 216.5 dB