Radiotelegraphy
[rey-dee-oh-tuh-leg-ruh-fee] /ˌreɪ di oʊ təˈlɛg rə fi/
noun
1.
the constructing or operating of radiotelegraphs.
/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which messages (usually in Morse code) are transmitted by radio waves; its use is no longer widespread as it has been superseded by satellite technology Also called wireless telegraphy
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