a navigation aid operating at VHF (very high frequency) and providing radial lines of position in any direction as determined by bearing selection within the receiving equipment ...
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Valdkond ICAO lisade põhjal loodud klassifikaatori järgi: Lennundusside (telekommunikatsioon); Lennutegevus
... ‘navaid equipment’ means a physical navaid equipment placed on the Earth surface, like Very High Frequency Omnidirectional Radio Range (VOR), Distance Measuring Equipment (DME), localizer, Tactical Air Navigation Beacon (TACAN) etc., which help in guiding aircraft traffic safely through existing air routes, ...