The use of radio to send telegraphic messages (usually by Morse code)
English: radiotelegraph, radiotelegraphy, wireless telegraph, wireless telegraphy
wireless_telegraphyEnglish
radiotelegraph, radiotelegraphy, wireless telegraphy, wireless telegraph
Noun
Telegraphy that uses transmission by radio rather than by wire
English: radiotelegraph, radiotelegraphy, wireless telegraphy