The technical term 'wireless telegraphy' has two distinct senses:
1: Where 'wireless' is an adjective qualifying the word 'telegraphy', meaning the kind of telegraphy that uses transmission by radio signals instead of over wires;
2: Where 'wireless telegraphy' is a noun phrase, meaning the use of radio signals to send telegraphic messages, usually by Morse Code.
Wireless telegraphy of telephony is the transmission of radio waves without wires from a transmitter to a receiver or transceiver. A cell phone is an example of radio telephony.
Domenico Mazzotto has written: 'Wireless telegraphy and telephony' -- subject(s): Radio, Wireless Telegraph
Charles G. Ashley has written: 'Wireless telegraphy and wireless telephony' -- subject(s): Radio, Wireless Telegraph
pulse code modulation method used a telephony.
Wireless telegraphy is an expression describing early radio telegraph communication, particularly between 1880 and 1920, before the term radio was used.
The cast of Signor Marconi -- Wireless Telegraphy - 1901 includes: Guglielmo Marconi as himself
G. G. Blake has written: 'History of radio telegraphy and telephony'
He invented wireless telegraphy.
Telegraphy was discovered First and then Telephony was discovered much later by Alexander Graham Bell.
The lack of wires and supporting devices.
Radio. Or more specifically, wireless telegraphy.
Rupert Stanley has written: 'Text-book on wireless telegraphy' -- subject(s): Wireless Telegraph
William Henry Ward received a U.S. Patent in 1872 for a wireless telegraphy system. He theorized that convection currents in the atmosphere could carry signals like a telegraph wire.