ALSO CALLED: Satellite Radio, Digital Broadcast Radio Satellite Systems, Direct Broadcast Radio Systems, SDARS, and Direct Broadcast Radio Satellite Systems DEFINITION: A satellite-based direct-broadcast radio service in which digitally encoded audio entertainment material is broadcast to Earth-based receivers, either directly from an orbiting satellite, or--in cases in which the receiver is in a shielded location--from the satellite to the receiver via a repeater station.
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