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Distance between direct broadcasting satellite and earth’s surface is ________(a) 4500km(b) 33000km(c) 5200km(d) 36000kmI got this question in a national level competition.Origin of the question is Time Domain Description in portion Double Sideband Suppressed Carrier Modulation of Analog Communications

Answer»

The correct ANSWER is (d) 36000km

The explanation is: Satellite BROADCASTING takes place between directional parabolic antennae, where the signal is sent via cable to antennae which beams it to the satellite and then the satellite sends BACK a signal to ANOTHER location on Earth. A communication satellite amplifies radio telecommunications signals with the help of a transponder. The distance between it and earth’s SURFACE is approximately 36000km.



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