Siófok, Hungary, in 1995
The sport challenges competitors to receive and copy, and sometime send, high speed Morse code transmissions correctly. It is particularly popular in Eastern Europe. Formal competitions sprang up increasingly in radiosports in the later 20th century. The HRT World Championships have been organised or sponsored by the International Amateur Radio Union (IARU, founded in 1925) more or less biennially since 1995. The 1983 event was the first European Championship.