n.

telegraphy that uses transmission by radio rather than by wire

同義詞：radiotelegraphradiotelegraphy

the use of radio to send telegraphic messages (usually by Morse code)

同義詞：radiotelegraphradiotelegraphywireless telegraph

WIRELESS TELEGRAPHY
Wireless telegraphy.
Wireless telegraphy
Spectrum pricing
2008 No. 3190 ELECTRONIC COMMUNICATIONS
2008 No. 3191 ELECTRONIC COMMUNICATIONS
2006 No. 1806 ELECTRONIC COMMUNICATIONS
Notice of Ofcom's proposals to make licence charges regulations
Wireless Telegraphy (Channel Islands) Order 1952
Propagation of waves in wireless telegraphy
Effects of heat on wireless telegraphy operators hearing and recording Morse messages.
Receiving antenna for wireless telegraphy or telephony
Short-wave wireless telegraphy