Notes

Repeater is a combination of a receiver and a transmitter …

Repeater is a combination of a receiver and a transmitter. A Repeater, picks up the signal from the transmitter, 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. A communication satellite is essentially a repeater station in space.

Repeater
Image of Repeater