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What is the function of repeater in a co...

What is the function of repeater in a communication system?

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A repeater is a combination of a receiver and transmitter. A repeater pick up the signal from the transmitter, amplifies and retransmits it to the receiver some times with a change in carrier frequency. Repeaters are used to extend the range of a communication system.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-I
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