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continuous wave telegraphy

См. также в других словарях:

  • Continuous wave — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Modulated continuous wave — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • continuous waves — noun plural 1. : radio waves that continue with unchanging intensity or amplitude without modulation and that are used in telegraphy in which the wave is turned on and off with a key to form the dots and dashes of a code continuous wave… …   Useful english dictionary

  • Telegraphy — (from the Greek words (τηλε) = far and (γραφειν) = write) is the long distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes… …   Wikipedia

  • Wireless telegraphy — The term Wireless Telegraphy is a historic term used today as applied to early radio telegraph communications techniques and practices. Wireless telegraphy originated as a term to describe electrical signaling without the electric wires to… …   Wikipedia

  • Damped wave — A damped wave is a wave whose amplitude of oscillation decreases with time, eventually going to zero. This term also refers to an early method of radio transmission produced by spark gap transmitters, which consisted of a series of damped… …   Wikipedia

  • Reginald Fessenden — Infobox Celebrity name = Reginald Fessenden caption = The Father of Radio Broadcasting birth date = birth date|1866|10|6|mf=y birth place = East Bolton, Quebec, Canada death date = death date and age|1932|7|22|1866|10|6|mf=y death place = Bermuda …   Wikipedia

  • Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …   Wikipedia

  • Tikker — A tikker was a device that allowed early crystal radio circuits to detect continuous wave telegraphy. Ordinary crystal detectors cannot demodulate continuous waves; the direct current (DC) signal is inaudible in headphones.[1] One form of the… …   Wikipedia

  • Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …   Wikipedia

  • Guglielmo Marconi — Born 25 April 1874(1874 04 25) Palazzo Marescalchi, Bologna …   Wikipedia

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