- very high frequency direction
- Abbreviation: VHFDF
Универсальный русско-английский словарь. Академик.ру. 2011.
Универсальный русско-английский словарь. Академик.ру. 2011.
VOR (abréviation de l'anglais very high frequency omnidirectional range) — ● VOR (abréviation de l anglais very high frequency omnidirectional range) Système de radionavigation aérienne donnant la direction d une balise fixe par la comparaison de trois émissions effectuées par cette balise … Encyclopédie Universelle
High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project … Wikipedia
Direction finding — (DF) refers to the establishment of the direction from which a received signal was transmitted. This can refer to radio or other forms of wireless communication. By combining the direction information from two or more suitably spaced receivers… … Wikipedia
direction finder — A radio receiver equipped with a directional sensing antenna used to take bearings on a radio transmitter. Specialized radio direction finders are used in aircraft as air navigation aids. Others are ground based, primarily to obtain a “fix” on a… … Aviation dictionary
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direction finder — direction finding. Radio. a receiver with a loop antenna rotating on a vertical axis, used to ascertain the direction of incoming radio waves. [1910 15] * * * ▪ instrument or radio direction finder radio receiver and antenna system for… … Universalium
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