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2017-12-25. Originally a distinction was made in Italian between wireless telegraphy (อิตาลี: radiofonia) and wireless telephony (อิตาลี: radioaudizione circolare)
sent broadcast through the country by multiple telegraph". "Wireless Telegraphy", The Electrician (London), October 14, 1898, p. 815: "there are rare
Tesla On His Work With Alternating Currents and Their Application to Wireless Telegraphy, Telephony and Transmission of Power, 2002, ISBN 1-893817-01-6.
organization dedicated to the perpetuation of the knowledge and traditions of telegraphy.) Alfred Vail Biography at speedwell.org เก็บถาวร 2006-05-05 ที่ เวย์แบ็กแมชชีน
"Intellectual Property, Telecommunication Patents, Wireless Telegraphy". Q-Thai Forum. "Titanic FAQs, Page 2: Signals". Marconigraph.com. 2002