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voice communications antenna

См. также в других словарях:

  • Voice of America — (VOA), is the official external radio and television broadcasting service of the United States federal government. Its oversight entity is the Broadcasting Board of Governors (BBG). VOA broadcasts by satellite and on FM, AM, and shortwave radio… …   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

  • Voice of Russia — For the blues rock band, see Radio Moscow (band). Russian State Radio Company Voice of Russia Type Radio network …   Wikipedia

  • Communications system — Communication system In telecommunication, a communications system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of… …   Wikipedia

  • Communications in the United States — The FCC logo. The primary regulator of communications in the United States is the Federal Communications Commission. It closely regulates all of the industries mentioned below with the exception of newspapers and the Internet service provider… …   Wikipedia

  • Communications in Liberia — Cellcom Liberia antenna in Monrovia (2009) Communications in Liberia consist of telephone lines and cellular phone networks. A lot of the telephone lines were destroyed or plundered in the two civil wars, making cellular phone networks a popular… …   Wikipedia

  • Army Communications and Information Systems (United Kingdom) — The British Army operates a wide range of communications and information systems [ [http://www.army.mod.uk/3512.aspx Royal Signals Equipment] ] . Some of these are specialised military systems, while others are procured off the shelf. They fall… …   Wikipedia

  • HRS antenna — HRS type antennas are more or less the standard antenna used for long distance high power shortwave broadcasting (> 1000 km). Contents 1 History of HRS design 2 Nomenclature 3 A versatile antenna type …   Wikipedia

  • EME (communications) — Earth Moon Earth, also known as moon bounce, is a radio communications technique which relies on the propagation of radio waves from an earth based transmitter directed via reflection from the surface of the moon back to an earth based receiver.… …   Wikipedia

  • Meteor burst communications — Meteor scatter propagation as used by SNOTEL Meteor burst communications (MBC), also referred to as meteor scatter communications[1], is a radio propagation mode that exploits the ionized trails of meteors during atmospheric entry to establish… …   Wikipedia

  • Defense Satellite Communications System — The Defense Satellite Communications System (DSCS)[1] provides the United States with military communications to support globally distributed military users. DSCS will be replaced by the Wideband Global SATCOM system. A total of 14 DSCS III… …   Wikipedia

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