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radio communications range

См. также в других словарях:

  • Amateur Radio Communications Team — The Amateur Radio Communications Team (ARCT) is a proposed system for classifying the capabilities of teams of volunteer amateur radio operators, in preparation for or in actual service in support of public service agencies (fire, police, other… …   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

  • Communications-based train control — CBTC deployment in Metro de Madrid, Spain …   Wikipedia

  • Communications satellite — A communications satellite (sometimes abbreviated to COMSAT) is an artificial satellite stationed in space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including geostationary orbits, Molniya… …   Wikipedia

  • Communications in the People's Republic of China — Telecommunications in China redirects here. For the industry, see Telecommunications industry in China. This article is about Communications in the People s Republic of China, excluding Hong Kong and Macau (see Communications in Hong Kong and… …   Wikipedia

  • Communications-electronics — In telecommunication, communications electronics (C E) is the specialized field concerned with the use of electronic devices and systems for the acquisition or acceptance, processing, storage, display, analysis, protection, disposition, and… …   Wikipedia

  • Radio-controlled model — A radio controlled model (or RC model) is a model that is steerable with the use of radio control. All types of vehicles imaginable have had RC systems installed in them, including cars, boats, planes, and even helicopters and scale railway… …   Wikipedia

  • radio wave — Elect. an electromagnetic wave having a wavelength between 1 millimeter and 30,000 meters, or a frequency between 10 kilohertz and 300,000 megahertz. [1915 20] * * * Wave from the portion of the electromagnetic spectrum at lower frequencies than… …   Universalium

  • radio frequency interference —    Abbreviated RFI. Many electronic devices, including radios, televisions, computers, and peripherals, can interfere with other signals in the radio frequency range by producing electromagnetic radiation. The use of radio frequencies is… …   Dictionary of networking

  • 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

  • Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… …   Wikipedia

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