Noun
an artificial satellite that relays signals back to earth; moves in a geostationary orbit
Source: WordNetA hundred years ago, the electric telegraph made possible-indeed, inevitable-the United States of America. The communications satellite will make equally inevitable a United Nations of Earth; let us hope that the transition period will not be equally bloody. Arthur C. Clarke
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder ; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Source: Internet
A direct broadcast satellite is a communications satellite that transmits to small DBS satellite dishes (usually 18 to 24 inches or 45 to 60 cm in diameter). Source: Internet
A satellite radio or subscription radio (SR) is a digital radio signal that is broadcast by a communications satellite, which covers a much wider geographical range than terrestrial radio signals. Source: Internet
An Advanced Extremely High Frequency communications satellite relays secure communications for the United States and other allied countries. Source: Internet
In a communications satellite, a transponder gathers signals over a range of uplink frequencies and re-transmits them on a different set of downlink frequencies to receivers on Earth, often without changing the content of the received signal or signals. Source: Internet