direction finder

基本解釋

VDF? Very – high – frequency Direction Finder?
甚高頻測向器?。
'When they answer, you'll slap a radio direction finder on them. Eh?'radio direction finder?
方向查找器?他們一回話，你是不是就向他們發(fā)送方向查找器?。
This article discourse upon the principle and system construction of Interferometer Direction Finder.
論文介紹了多波道干涉儀測向的系統(tǒng)構(gòu)成及其原理。

He invented the radio direction finder, autopilot and the first fully automatic aircraft landing system.
FORBES: The Bill Lear I Knew
During the second world war at Marconi he was part of the team that invented a radio direction-finder which was fitted to British bombers.
ECONOMIST: Christopher Cockerell

a highly directional aerial system that can be used to determine the direction of incoming radio signals, used esp as a navigation aid (Abbreviation D/F, DF)