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radiotelegraphy

[rey-dee-oh-tuh-leg-ruh-fee] /ˌreɪ di oʊ təˈlɛg rə fi/
noun
1.
the constructing or operating of radiotelegraphs.
Origin
1895-1900
1895-1900; radio- + telegraphy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for radio-telegraphy

radiotelegraphy

/ˌreɪdɪəʊtɪˈlɛɡrəfɪ/
noun
1.
a type of telegraphy in which messages (usually in Morse code) are transmitted by radio waves; its use is no longer widespread as it has been superseded by satellite technology Also called wireless telegraphy
Derived Forms
radiotelegraphic (ˌreɪdɪəʊˌtɛlɪˈɡræfɪk) adjective
radiotelegraphically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for radio-telegraphy

radiotelegraphy

radio communication by means of Morse Code or other coded signals. The radio carrier is modulated by changing its amplitude, frequency, or phase in accordance with the Morse dot-dash system or some other code. At the receiver the coded modulation is recovered by an appropriate demodulator and the code groups are converted into the corresponding symbols. In many instances the symbols are generated by a computer and modem rather than with a manual telegraph key

Learn more about radiotelegraphy with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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