Allocations

 
U.S. Non-Federal-Government Allocations
144 - 146 MHz
AMATEUR
AMATEUR-SATELLITE

FCC Rule Parts:
Amateur Radio (97)

U.S. Federal Government Allocations
144 - 148 MHz


ITU Region 1 Allocations
144 - 146 MHz
AMATEUR
AMATEUR-SATELLITE


ITU Region 2 Allocations
144 - 146 MHz
AMATEUR
AMATEUR-SATELLITE


ITU Region 3 Allocations
144 - 146 MHz
AMATEUR
AMATEUR-SATELLITE


SpectrumWiki

Band Uses (144 - 148 MHz)

Footnotes

5.216   Additional allocation: in China, the band 144-146 MHz is also allocated to the aeronautical mobile (OR) service on a secondary basis.


SpectrumWiki

 
Amateur Radio 2 m Band
Orbcomm LEO Satellite Constellation


Related Documents, Links, and Multimedia:
Occupancy Measurements (10)
Band Plan (2)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 144 MHz 146 MHz 148 MHz
Wavelength 2.1 m 2.1 m 2.0 m
Band designator(s) VHF VHF VHF
Isotropic collecting area 3,449.1 cm2 3,355.3 cm2 3,265.2 cm2
Free space loss (1 m) 15.6 dB 15.7 dB 15.7 dB
Free space loss (1 km) 75.6 dB 75.7 dB 75.7 dB
Free space loss (10 km) 95.6 dB 95.7 dB 95.7 dB
Free space loss (100 km) 115.6 dB 115.7 dB 115.7 dB
Free space loss (1000 km) 135.6 dB 135.7 dB 135.7 dB
Free space loss
(35,786 km = GEO orbit)
166.7 dB 166.8 dB 166.8 dB
Free space loss (378,370 km = Moon) 187.2 dB 187.3 dB 187.3 dB
Simple HTML Table