Image: VOR principle
Description: This animation demonstrates the principle of VOR radio stations and radials, which are used in air navigation. A radio beam sweeps around (actually it's done 30 times per second). When the beam is at the local magnetic north direction, the station transmits a second, omni-directional signal. Theoretically the time between this signal and receiving the beam gives the angle from the VOR station, this is 105° now. As a matter of fact VOR transmission is based on phase sliding of radio waves but this version, which is similar to the lighthouses, can be more easily realized.
Title: VOR principle
Credit: Own work
Author: Orion 8
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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