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radiotelegraphy    
n. 无线电报

无线电报

radiotelegraphy
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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  • Radiotelegraphy | 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
  • 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
  • RadioTelegraphy
    Zen and the Art of Radiotelegraphy Key Restoration - by W R Smith Learning to Use Morse Code Learning and Operating CW - K6DBG USAFI Basic Code Course - well proven LCWO (Learn CW Online) Practice W1AW AA9PW Maritime Stations Computer Learning Just Learn Morse Code - free download Stormy Weather - $$$ Iambic Myth Side-Swipery - KD0CA CW
  • radiotelegraphy - Definition
    Via: "News of the armistice was broadcast via radiotelegraphy across the Atlantic " This is the foundational sense of the word, referring specifically to the method of sending text-based information via radio waves, typically using Continuous Wave (CW) or Morse code pulses
  • History and Development of the Telegraph -- Telegraphy
    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
  • Telegraphy - Wikipedia
    The late 1880s through to the 1890s saw the discovery and then development of a newly understood phenomenon into a form of wireless telegraphy, called Hertzian wave wireless telegraphy, radiotelegraphy, or (later) simply "radio"
  • Radio technology | History, Principles, Types, Facts | Britannica
    Radio technology, transmission and detection of communication signals consisting of electromagnetic waves that travel through the air in a straight line or by reflection from the ionosphere or from a communications satellite Learn more about the history, development, and principles of radio technology in this article
  • radiotelegraphy - Wiktionary, the free dictionary
    Noun radiotelegraphy (uncountable) The process and techniques of sending telegrams using radio waves rather than wires Synonym: wireless telegraphy
  • What does radiotelegraphy mean? - Definitions. net
    Radiotelegraphy is a form of wireless communication that involves the transmission of telegraph signals via radio waves This system uses Morse code, where messages are sent and received using patterns of short and long signals known as "dots" and "dashes"
  • Engineering:Wireless telegraphy - HandWiki
    Wireless telegraphy or radiotelegraphy is the transmission of text messages by radio waves, analogous to electrical telegraphy using cables





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