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Portable Network Graphic  |  1996-04-23  |  43KB  |  550x444  |  8-bit (206 colors)
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OCR: COMMUNICATIONS SATELLITES SIGNALS FROM SPACE ALMOST ALL communications satellites are in Satellites can return signals to Earth either directly geostationary orbit. Satellite dishes on Earth or via another satellite. send telephone and TV signals up to the satellite, which processes and sends them back down to Satellite relays signal another ground station. Satellites can send signals either to an entire continent or to just a localized area. Direct-broadcast satellites send out television signals either to individual dish receivers or to televisions connected by cable to larger dishes. Ground station Ground station sends signal receives signal Satellite sends signal to Earth SEE SATELLITE NEXT ALSO FOOTPRINTS