What is ARDF (Radio Orienteering)?

Amateur radio direction finding ARDF, also known as fox hunting, and also known as Radio Orienteering, is a timed event in which individual competitors use a directional radio (see below picture of 80m assembled ARDF receiver) and if needed a topographic map to navigate through an area, park or woods, while looking for radio transmitters.

Every ARDF event brings a new challenge and develops new skills. You can do it alone, or with your friends or family. You can participate in ARDF competitions and win medals, from local competitions to world championships.

You don’t need to have any radio experience, or even your Amateur Radio License in order to participate!

How does it work?

Orienteering, foxhunting, or transmitter hunting—can take many forms. The game described here has been standardized and fostered by the International Amateur Radio Union since about 1978. The transmitters (foxes) all transmit on the same frequency, but take turns transmitting a unique signal for one minute or less and are silent for 4 or less minutes while the others transmit (standard and sprint type of events).

The skills needed to succeed include obtaining accurate bearings with the receiving gear, navigating through the wooded area using map and compass, and devising a strategy to visit the required sites in the minimum time.