In commmunication system, a repeater is used to extend the range of transmission. It is the combination of

In commmunication system, a repeater is used to extend the range of transmission. It is the combination of
  1. modulator and power amplifier.
  2. receiver and transmitter.
  3. IF stage and amplifier.
  4. rectifier and detector.

Solution

A repeater is a combination of a receiver and a transmitter. A repeater picks up the signal from the transmitter, then amplifies and retransmits it to the receiver sometimes with a change in carrier frequency. Repeaters are used to extend the range of a communication system.

Asked in: MHT CET 2020 (16 Oct Shift 2)

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