- An artificial satellite which relays, and usually amplifies, radio-wave signals between terrestrial communications stations, terrestrial communications stations and other communications satellites, or between other communications satellites. Such satellites provide high-capacity communications links, offer a very wide coverage area, and may transmit TV, telephone, and data signals, among many others. Its abbreviation is comsat. Also called radio relay satellite, relay satellite, or repeater satellite.
- abbreviation comsat
- synonym communication satellite
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