Search results with tag "Very high frequency"
RADIO OPERATORS HANDBOOK
www.trngcmd.marines.milthe Earth. Short-distance, ultrahigh frequency (UHF), and upper very high frequency (VHF) transmissions are by ground waves. Long-dis-tance, high frequency (HF) transmission is principally by sky waves. Single-channel radio sets can use ground wave or sky wave propagation for communications. Ground Wave Propagation
ARRL - Home
www.arrl.orgVHF — Very High Frequency bands 6 Meters (50 MHz) 1.25 Meters (222 MHz) 2 Meters (144 MHz) 144.1 144.0 33 cm (902 MHz) 222.0 N (25 W) 225.0 50.1 50.0 54.0 UHF — Ultra High Frequency bands 70 cm (420 MHz) 23 cm (1240 MHz) 1240 241-250 GHz All above 275 GHz 1300 1295 902.0 928.0 122.25-123.0 GHz 134-141 GHz 420.0 450.0 1270
ICAO HANDBOOK ON RADIO FREQUENCY SPECTRUM …
www.icao.intVHF digital link VHF. Very high frequency VOLMET. Meteorological information for aircraft in flight VOR. VHF omnidirectional radio range WRC-12. World Radiocommunication Conference — 2012 Terms and definitions Designated operational range or height (DOR or DOH).
Radio Theory The Basics - Trainex
trainex.orgVHF - Very High Frequency Ł Range: 30 MHz - 300 MHz Ł Government and public service operate primarily at 150 MHz to 174 MHz for incidents Ł 150 MHz to 174 MHz used extensively in NIFC communications equipment Ł VHF has the advantage of being able to pass through bushes and trees Ł VHF has the disadvantage of not reliably passing through ...