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radio frequency carrier wave

См. также в других словарях:

  • Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …   Wikipedia

  • Carrier wave — In telecommunications, a carrier wave, or carrier is a waveform (usually sinusoidal) that is modulated (modified) with an input signal for the purpose of conveying information, [citeweb|title=Carrier wave with no modulation transports no… …   Wikipedia

  • radio — /ray dee oh /, n., pl. radios, adj., v., radioed, radioing. n. 1. wireless telegraphy or telephony: speeches broadcast by radio. 2. an apparatus for receiving or transmitting radio broadcasts. 3. a message transmitted by radio. adj. 4. pertaining …   Universalium

  • Frequency-division multiplexing — (FDM) is a form of signal multiplexing where multiple baseband signals are modulated on different frequency carrier waves and added together to create a composite signal. Non telephoneFDM can also be used to combine multiple signals before final… …   Wikipedia

  • radio emission — noun an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m (Freq. 16) • Syn: ↑radio wave, ↑radio radiation • Hypernyms: ↑electromagnetic radiation, ↑electromagnetic wave, ↑nonparticulate radiation …   Useful english dictionary

  • radio wave — noun an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m (Freq. 2) • Syn: ↑radio emission, ↑radio radiation • Hypernyms: ↑electromagnetic radiation, ↑electromagnetic wave, ↑nonparticulate radiation …   Useful english dictionary

  • wave motion — ▪ physics       propagation of disturbances that is, deviations from a state of rest or equilibrium from place to place in a regular and organized way. Most familiar are surface waves on water, but both sound and light travel as wavelike… …   Universalium

  • radio radiation — noun an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m (Freq. 2) • Syn: ↑radio wave, ↑radio emission • Hypernyms: ↑electromagnetic radiation, ↑electromagnetic wave, ↑nonparticulate radiation …   Useful english dictionary

  • Radio teleswitch — The Radio Teleswitch Service (RTS) has its origins in the energy management projects initiated in the United Kingdom by the Electricity Council in the early 1980s. Three projects investigated the feasibility of using the telephone network, the… …   Wikipedia

  • Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …   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

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