very high frequency

very high frequency
The range of radio frequencies between 30 and 300 MHz. Portions of this band, 108 to 118 MHz, are used for certain NAVAIDs (navigational aids); 118 to 136 MHz are used for civil air-to-ground voice communications. Other frequencies in this band are used for purposes not related to air traffic control. Very high frequencies are line-of-sight frequencies with practically no ground-wave element. The VHF range increases with height. The maximum ranges for voice communication are about 185 miles (300 km). Communication systems operating VHF bands provide high-quality communications between aircraft and ground stations. In spite of being line-of-sight communication, long-range communications using VHF are possible through repeater stations and satellite links.
Typical line-of-sight distances for VHF reception.

Aviation dictionary. 2014.

Look at other dictionaries:

  • Very high frequency — (VHF) is the radio frequency range from 30 MHz to 300 MHz. Frequencies immediately below VHF are denoted High frequency (HF), and the next higher frequencies are known as Ultra high frequency (UHF). The frequency allocation is done by ITU. Common …   Wikipedia

  • very high frequency — n. any radio frequency between 30 and 300 megahertz …   English World dictionary

  • Very High Frequency — Very High Frequency,   VHF …   Universal-Lexikon

  • very high frequency — noun 30 to 300 megahertz • Syn: ↑VHF • Hypernyms: ↑radio frequency • Part Holonyms: ↑electromagnetic spectrum * * * ˌvery high ˈfrequency [very high frequency] …   Useful english dictionary

  • very-high-frequency — adjective : of or relating to very high frequency or to a radio wave having such a frequency …   Useful english dictionary

  • very high frequency — labai aukštas dažnis statusas T sritis automatika atitikmenys: angl. very high frequency vok. Höchstfrequenz, f; Ultrakurzwellenfrequenz, f rus. очень высокая частота, f pranc. fréquence très haute, f …   Automatikos terminų žodynas

  • very high frequency — noun Date: 1920 a radio frequency between ultrahigh frequency and high frequency see radio frequency table …   New Collegiate Dictionary

  • very high frequency — ver′y high fre′quency n. rtv any frequency between 30 and 300 megahertz Abbr.: VHF • Etymology: 1920–25 …   From formal English to slang

  • very high frequency — any frequency between 30 and 300 megahertz. Abbr.: VHF * * * …   Universalium

  • very high frequency — noun The frequency area from 30 MHz through 300 MHz, commonly used for radio and TV broadcasting. See Also: VHF …   Wiktionary

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