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radiotelegraph    
n. 无线电报

无线电报

radiotelegraph
n 1: telegraphy that uses transmission by radio rather than by
wire [synonym: {radiotelegraph}, {radiotelegraphy}, {wireless
telegraphy}]
2: the use of radio to send telegraphic messages (usually by
Morse code) [synonym: {radiotelegraph}, {radiotelegraphy},
{wireless telegraph}, {wireless telegraphy}]


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  • Wireless telegraphy - Wikipedia
    Wireless telegraphy or radiotelegraphy, commonly called CW (continuous wave), ICW (interrupted continuous wave) transmission, or on-off keying, and designated by the International Telecommunication Union as emission type A1A or A2A, is a radio communication method It was transmitted by several different modulation methods during its history
  • Morse Code, Wireless Signals, Radio Waves - Britannica
    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
  • Radiotelegraphic - Definition, Usage Quiz | UltimateLexicon. com
    Radiotelegraphic (adj ) refers to the transmission of telegraphic messages using radio waves instead of traditional wired connections
  • The Invention of Radio Technology - ThoughtCo
    Radio technology started as wireless telegraphy and owes its development to telegraph and telephone Guglielmo Marconi was key in proving radio communication's feasibility by sending the first wireless signals The invention of AM radio and FM radio allowed for better and clearer radio broadcasts worldwide
  • RADIOTELEGRAPH Definition Meaning - Merriam-Webster
    The meaning of RADIOTELEGRAPH is wireless telegraphy
  • History and Development of the Telegraph -- Telegraphy - Edinformatics
    Telegraphy (from the Greek words tele = far away and grapho = write) is the long-distance transmission of written messages without physical transport of letters, originally over wire Radiotelegraphy or wireless telegraphy transmits messages using radio
  • What does radiotelegraph mean? - Definitions. net
    Radiotelegraph is a communication method that involves the transmission of telegraphic information through radio waves It uses Morse code to transmit the information, where various signals or 'dots' and 'dashes' represent different letters, numbers or symbols
  • radiotelegraphy - The Free Dictionary
    (Telecommunications) 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
  • TELEGRAPH AND RADIOTELEGRAPH CODES AN INTRODUCTION
    RADIOTELEGRAPH CODES AN INTRODUCTION By K Miller, K6CTW The Morse alphabet, which is employed to create the sounds used in landline telegraphy in Canada and the United States, is composed entirely of linear characters formed of dots and dashes, and by combinations of the two The
  • RADIOTELEGRAPH definition and meaning | Collins English Dictionary
    2 meanings: 1 to send (a message) by radiotelegraphy 2 a message sent by radiotelegraphy Click for more definitions





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