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History
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Telegraphic multiplexer, from 1922 Britannica
Telegraphic multiplexer, from 1922 Britannica
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Earth station at the satellite communication facility Raisting Earth Station in Raisting, Bavaria, Germany
Earth station at the satellite communication facility Raisting Earth Station in Raisting, Bavaria, Germany
Optical fibre provides cheaper bandwidth for long-distance communication.
Optical fibre provides cheaper bandwidth for long-distance communication.