A device mounted on a communication satellite which receives, amplifies and re-transmits signals from earth station is?
A device mounted on a communication satellite which receives, amplifies and re-transmits signals from earth station is?
The correct option is A Transponder
A device mounted on a
communication satellite which receives, amplifies and re-transmits signals from
earth station is Transponder.
A communications
satellite’s channels are called transponders because each is a separate
transceiver or repeater. With digital video data compression and multiplexing,
several video and audio channels may travel through a single transponder on a
single wideband carrier. Original analog video only has one channel per
transponder, with subcarriers for audio and automatic transmission
identification service (ATIS). Non-multiplexed radio stations can also travel
in single channel per carrier (SCPC) mode, with multiple carriers (analog or
digital) per transponder. This allows each station to transmit directly to the
satellite, rather than paying for a whole transponder, or using landlines to
send it to an earth station for multiplexing with other stations.
A device mounted on a communication satellite which receives, amplifies and re-transmits signals from earth station is Transponder.
A communications satellite’s channels are called transponders because each is a separate transceiver or repeater. With digital video data compression and multiplexing, several video and audio channels may travel through a single transponder on a single wideband carrier. Original analog video only has one channel per transponder, with subcarriers for audio and automatic transmission identification service (ATIS). Non-multiplexed radio stations can also travel in single channel per carrier (SCPC) mode, with multiple carriers (analog or digital) per transponder. This allows each station to transmit directly to the satellite, rather than paying for a whole transponder, or using landlines to send it to an earth station for multiplexing with other stations.
