sattelite bandwidth is broken into segments called transponders
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∙ 11y agointel sat
250 msec
In satellite communication uplink (transmission of signal from earth station to satellite ) & downlink (reception of signal from satellite to earth station) takes place TX & RX involves a finite amount of delay which is acceptable in data communication, but i audio & video TX this delay is unacceptable, overlapping/ alaising causes errors which demodulated by qpsk.
A propagation delay is the amount of time it takes radio waves to travel from the surface of the Earth to the satellite and then back down to the Earth. The calculation of the delay is based upon the altitude and position of the satellite systems.
satellite is satellite
The acronym INSAT means Indian National Satellite in the Geo Stationary Orbit. The GSO satellites are useful for communication and weather forecasting . They carry C , Extended C and Ku Band Transponders (16 Numbers ) for TVRO and DBS schemes. The satellite design, testing, fabrication and assembly are the joint venture of Technical persons of ISRO and any individual.
The first communication satellite was Echo NASA
definition of optical satellite communication
check out lyngsat.com for a list of sats transponders channels and frequencies
Why Fresnel zone affecting satellite and ground communication?
Com = Communication, Sat = Satellite
land satellite sea satellite communication satellite weather satellite and spy satellite