Allocations

 
U.S. Non-Federal-Government Allocations
174.8 - 182 GHz
EARTH EXPLORATION-SATELLITE (passive)
INTER-SATELLITE 5.562H
SPACE RESEARCH (passive)


U.S. Federal Government Allocations
174.8 - 182 GHz
EARTH EXPLORATION-SATELLITE (passive)
INTER-SATELLITE 5.562H
SPACE RESEARCH (passive)


ITU Region 1 Allocations
174.8 - 182 GHz
EARTH EXPLORATION-SATELLITE (passive)
INTER-SATELLITE 5.562H
SPACE RESEARCH (passive)


ITU Region 2 Allocations
174.8 - 182 GHz
EARTH EXPLORATION-SATELLITE (passive)
INTER-SATELLITE 5.562H
SPACE RESEARCH (passive)


ITU Region 3 Allocations
174.8 - 182 GHz
EARTH EXPLORATION-SATELLITE (passive)
INTER-SATELLITE 5.562H
SPACE RESEARCH (passive)


SpectrumWiki


Footnotes

5.562H   Use of the bands 174.8-182 GHz and 185-190 GHz by the inter-satellite service is limited to satellites in the geostationary-satellite orbit. The single-entry power flux-density produced by a station in the inter-satellite service, for all conditions and for all methods of modulation, at all altitudes from 0 to 1 000 km above the Earth’s surface and in the vicinity of all geostationary orbital positions occupied by passive sensors, shall not exceed −144 dB(W/(m2 · MHz)) for all angles of arrival. (WRC 2000)


SpectrumWiki

None found.


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

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 174.8 GHz 178.4 GHz 182 GHz
Wavelength 1.7 mm 1.7 mm 1.6 mm
Band designator(s) EHF (millimeter wave) EHF (millimeter wave) EHF (millimeter wave)
Isotropic collecting area 0.2 mm2 0.2 mm2 0.2 mm2
Free space loss (1 m) 77.3 dB 77.5 dB 77.7 dB
Free space loss (1 km) 137.3 dB 137.5 dB 137.7 dB
Free space loss (10 km) 157.3 dB 157.5 dB 157.7 dB
Free space loss (100 km) 177.3 dB 177.5 dB 177.7 dB
Free space loss (1000 km) 197.3 dB 197.5 dB 197.7 dB
Free space loss
(35,786 km = GEO orbit)
228.4 dB 228.6 dB 228.7 dB
Free space loss (378,370 km = Moon) 248.9 dB 249.0 dB 249.2 dB
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