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A satellite communications controller, which is a component of satellite earth stations, establishes a time division multiple access structure that provides flexibility and efficiency in the use of satellite transmission capacity. The controller blends digital, computer, and communications technology to establish precise timings required for system synchronization. It also performs signal conversion and switching necessary to transmit voice and business machine traffic over the satellite. This paper discusses a particular satellite communications system and the architecture and implementation of the satellite communications controller.
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