Very high frequency (
VHF) is the
ITU designation for the range of
radio frequency electromagnetic waves (
radio waves) from to , with corresponding wavelengths of ten to one meters. Frequencies immediately below VHF are denoted
high frequency (HF), and the next higher frequencies are known as
ultra high frequency (UHF). Common uses for VHF are
FM radio broadcasting,
television broadcasting,
two way land mobile radio systems (emergency, business, private use and military), long range data communication up to several tens of kilometres with
radio modems,
amateur radio, and
marine communications.
Air traffic control communications and air navigation systems (e.g.
VOR,
DME &
ILS) work at distances of 100 kilometres or more to aircraft at cruising altitude.