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relay satellite communications

См. также в других словарях:

  • Tracking and Data Relay Satellite — A Tracking and Data Relay Satellite (TDRS) is one of a network of communications satellites of the Tracking and Data Relay Satellite System (TDRSS) used by NASA and other United States government agencies for communication to satellites or the… …   Wikipedia

  • Transponder (Satellite communications) — A communications satellite’s channels are called transponders, because each is a separate transceiver or repeater. Most comsats are microwave radio relay stations in orbit, and carry dozens of transponders, each with a bandwidth of tens of… …   Wikipedia

  • Satellite Internet access — Satellite Internet services are used in locations where terrestrial Internet access is not available and in locations which move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land… …   Wikipedia

  • Satellite radio — is an analogue or digital radio signal that is relayed through one or more satellites and thus can be received in a much wider geographical area than terrestrial FM radio stations. While in Europe many primarily FM radio stations provide an… …   Wikipedia

  • Relay (disambiguation) — Relay may refer to: *a station in a message forwarding system, especially for the changing of horses by couriers **Relay league **cursus publicus (Roman Empire) * Relay, an electronics component * Microwave radio relay * Relay race *… …   Wikipedia

  • Communications in Argentina — gives an overview of the postal, telephone, Internet, radio, television, and newspaper services available in Argentina. Contents 1 Postal 2 Telephone 2.1 Companies 3 Internet …   Wikipedia

  • Communications in Burundi — refers to the telephony, internet, postal, radio, and television systems of Burundi. Contents 1 Telephony 2 Internet 3 Postal Service 4 Radio and television …   Wikipedia

  • Communications in the United States Virgin Islands — Telephone Telephones main lines in use:71,700 (2005)Telephones mobile cellular:80,300 (2005)Telephone system: domestic: modern, uses fiber optic cable and microwave radio relay international: submarine cable and satellite communications;… …   Wikipedia

  • Tracking and Data Relay Satellite — U.S. Aerospace. one of a series of geostationary satellites that relay communications between a space shuttle and mission control. Abbr.: TDRS * * * …   Universalium

  • Tracking and Data Relay Satellite — U.S. Aerospace. one of a series of geostationary satellites that relay communications between a space shuttle and mission control. Abbr.: TDRS …   Useful english dictionary

  • 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

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