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.

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  • 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

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  • very high-frequency band — labai aukštų dažnių juosta statusas T sritis radioelektronika atitikmenys: angl. very high frequency band vok. Ultrahochfrequenzband, n rus. полоса очень высоких частот, f pranc. bande de fréquence très haute, f …   Radioelektronikos terminų žodynas

  • very high-frequency band — labai aukštų dažnių diapazonas statusas T sritis radioelektronika atitikmenys: angl. very high frequency band vok. Ultrahochfrequenzband, n rus. диапазон очень высоких частот, m pranc. bande de très hautes fréquences, f; gamme de très hautes… …   Radioelektronikos terminų žodynas

  • very high-frequency bandpass filter — juostinis labai aukštų dažnių filtras statusas T sritis radioelektronika atitikmenys: angl. very high frequency bandpass filter vok. Ultrahochfrequenzbandfilter, n rus. полосовой фильтр диапазона очень высоких частот, m pranc. filtre passe bande… …   Radioelektronikos terminų žodynas

  • very high-frequency channel — labai aukštų dažnių kanalas statusas T sritis radioelektronika atitikmenys: angl. very high frequency channel vok. Ultrahochfrequenzkanal, m rus. канал очень высоких частот, m pranc. canal de fréquences très hautes, m …   Radioelektronikos terminų žodynas

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