Radio direction finding is a set of skills used to find hidden radio transmitters. Amateur radio operators practice these skills in events called "foxhunts" or "t-hunts". With these skills, they are better prepared to serve their communities in a variety of emergency situations.
Amateur radio clubs worldwide sponsor foxhunts, where individuals and teams compete to find hidden transmitters. Most hunts are open, and clubs welcome new participants. On-the-hunt training and coaching are readily available.