An elementary manual of radiotelegraphy and radiotelephony for students and operators (1916)
Fleming, J. A. (John Ambrose), Sir, 1849-1945 · London, Longmans, Green & co. · leaf 295
waves arriving fromthe adjacent sending station. Communication can therefore go onboth ways simultaneously across the Atlantic without hindrance.This just doubles the available transmitting time. KADIOTELKuRAPHIC STA IIONS 277 It romaiiis to bo added that tin; tiansiuissioii can be carried onby… … keys and control the spark discharges. This control can beeffected from the recei%ing station, which is 60 miles from thetransmitting station. In the same manner the received signalscan be made to operate an Einthoven galvanometer and to photo-graph themselves on sensitive paper tape. 278…
Radio · Telegraph, Wireless · Telephone, Wireless
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