Very high frequency
Very high frequency (VHF) is an ITU label of radio frequencies.[1] The designation has all frequencies between 30 megahertz to 300 megahertz. Behind the VHF frequencies is called high frequency (HF). Above the VHF frequencies is called ultra high frequency (UHF).
In many parts of the world, VHF Band I was used for the broadcasting of analog television. Because of the worldwide switch to digital terrestrial television most countries ask that television in the VHF range uses digital encoding, rather than analog encoding.
Global use
Some parts of the VHF band have the same use globally. Some national uses are detailed below.
- 50-54 MHz: Amateur Radio 6-meter band.
- 108-118 MHz: Air naviation beacons VOR and Instrument Landing System limiter.
- 118-137 MHz: Airband used by air traffic control, AM. 121.5 MHz is an emergency frequency.
- 144-146 MHz: Amateur Radio 2-meter band (Goes up to 148 MHz in some regions)
- 156-174 MHz: VHF maritime mobile band for maritime two-way radio on ships.
Very High Frequency Media
VHF television antennas used for broadcast television reception. These six antennas are a type known as a Yagi antenna, which is widely used on VHF.
"Rabbit-ears" VHF television antenna (the small loop is a separate UHF antenna)
A VHF television broadcasting antenna. This is a common type called a super turnstile or batwing antenna.
A plan showing VHF use in television, FM radio, amateur radio, marine radio and aviation.
