Allocations

 
U.S. Non-Federal-Government Allocations
238 - 240 GHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE
RADIOLOCATION
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


U.S. Federal Government Allocations
238 - 240 GHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE
RADIOLOCATION
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


ITU Region 1 Allocations
238 - 240 GHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE
RADIOLOCATION
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


ITU Region 2 Allocations
238 - 240 GHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE
RADIOLOCATION
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


ITU Region 3 Allocations
238 - 240 GHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE
RADIOLOCATION
RADIONAVIGATION
RADIONAVIGATION-SATELLITE


SpectrumWiki

Band Uses (238 - 240 GHz)

Footnotes


SpectrumWiki

 
WRC-23 Agenda Item 1.14 Possible Adjustments to EESS (passive) Allocations
WRC-27 study for radiolocation use


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

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 238 GHz 239 GHz 240 GHz
Wavelength 1.3 mm 1.3 mm 1.2 mm
Band designator(s) EHF (millimeter wave) EHF (millimeter wave) EHF (millimeter wave)
Isotropic collecting area 0.1 mm2 0.1 mm2 0.1 mm2
Free space loss (1 m) 80.0 dB 80.0 dB 80.1 dB
Free space loss (1 km) 140.0 dB 140.0 dB 140.1 dB
Free space loss (10 km) 160.0 dB 160.0 dB 160.1 dB
Free space loss (100 km) 180.0 dB 180.0 dB 180.1 dB
Free space loss (1000 km) 200.0 dB 200.0 dB 200.1 dB
Free space loss
(35,786 km = GEO orbit)
231.1 dB 231.1 dB 231.1 dB
Free space loss (378,370 km = Moon) 251.5 dB 251.6 dB 251.6 dB
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