ARDF (Amateur Radio Direction Finding), which indicates locating radio's direction, is a type of leports (leisure/sports) for amateur radio operators. In the competition, contestants compete to find the 5 radio senders hidden in the hillocks within a 6 to 10km radius by using a wave receiver (called foxgun), map, and compass. The competitor who finds the most in the shortest amount of time within the pre-determined time limit is recognized as the winner. In about 160 countries across the world, there are a total of 3 million amateur radio operators, who enjoy this hobby through the Morse code-based telecommunication or voice telecommunication. The ARDF contest is just another variety that has newly emerged in the field of amateur radio operation. The ARDF competition, which allows contestants to hone their mind and body and saves lives during disasters, is providing a new type of enjoyment among existing amateur radio operators. In Korea, there are about 200,000 amateur radio operators, with the number of Koreans participating in ARDF competitions steadily increasing. The World ARDF Championships, which was first held in 1980, is held every 2 years under the auspices of IARU (International Amateur Radio Union). More than 450 participants from around 30 countries will draw together for this 14th round of the ARDF Championships.

A new stamp is issued to commemorate the 14th round of the World ARDF Championships. It is hoped that this competition will provide a momentum to stimulate public interest and participation in amateur radio.