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How Satellite Broadcasting Works

Writer and scientist Arthur C Clarke first proposed "extra terrestrial relays" in 1945. Now the sky is full of all kinds of satellites. How are radio and TV signals transmitted by geostationary satellites that are "distance anchored" in orbits 36,000 kilometres above the earth?

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9 minutes

大象传媒 World Service Archive

This programme was restored as part of the World Service archive project