amateur radio direction finding [ARDF]

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    An amateur radio racing sport that combines radio direction finding with the map and compass skills of orienteering. It is a timed race in which individual competitors use a topographic map, a magnetic compass, and radio-direction finding apparatus to navigate through diverse wooded terrain while searching for a radio transmitter (the “fox” or “bunny”).

    The sport has been most popular in Eastern Europe, Russia, and China, where it was often used in the physical education programs in schools.

    Frequencies used are mainly in two meters and eighty meters ham radio bands

    fox hunt, fox hunting, T-hunting, transmitter hunting, radio orienteering
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