It was originally intended for use in the sport of amateur radio direction finding.

One of the most popular activities is Amateur Radio Direction Finding commonly known as a "foxhunt".

Radiosport also can refer to the sport of amateur radio direction finding (ARDF).

Sunday also has a fun car rally and a mini ARDF (amateur radio direction finding) event on site.

The International Amateur Radio Union governs amateur radio direction finding.

Fox Oring is a variation of the sport of Amateur Radio Direction Finding.

Amateur Radio Direction Finding is a sport combining orienteering with the skills of radio direction finding.

Third Amateur Radio Direction Finding World Championship held in Sarajevo, Yugoslavia.

National Topband Amateur Radio Direction Finding Contests.

First European Amateur Radio Direction Finding Championships held in Stockholm, Sweden.

Fourth Amateur Radio Direction Finding European Championship held in Warsaw, Poland.

The organization initially focused on radiosport activities, specifically High Speed Telegraphy and Amateur Radio Direction Finding.

BFRA was the host organization for the 2006 Amateur Radio Direction Finding World Championships.

In amateur radio direction finding, the competitor uses a hand-held receiver to locate radio beacons at up to five control points that are not marked on the map.

HRS also supports local competitions in Amateur Radio Direction Finding as well as a national team that travels to regional and world championship events.

The most popular form of the sport, worldwide, is known as Amateur Radio Direction Finding or by its international abbreviation ARDF.

This includes HF contesting, Amateur Radio Direction Finding, and High Speed Telegraphy.

Sixth Amateur Radio Direction Finding European Championship held in Duisburg, Federal Republic of Germany.

All three regions have appointed Coordinators for Amateur Radio Direction Finding, emergency communications, monitoring for electromagnetic interference, and radio propagation.

Early activities of the organization focused on radiosport, and the MRSF was active in promoting Amateur Radio Direction Finding competitions throughout the country.

Tenth Amateur Radio Direction Finding World Championships are held in Nanjing, China, the first time ever to be hosted at a location outside Europe.

The IARU also promulgates the rules used by most competitions in amateur radio direction finding, including IARU-sponsored regional and world championships.

Amateur radio direction finding identified RAF Akrotiri as the location of the powerful but now defunct shortwave numbers station "Lincolnshire Poacher".

ARDF or Amateur Radio Direction Finding, is an exciting branch of amateur radio, attracting people of all ages.

HRS will be the sponsoring organization for the 2010 Amateur Radio Direction Finding World Championships to be held in Dubrovnik.