. An electronic device which receives and transmits signal to cover longer distances.
. Used to increase length of network by eliminating effect of attenuation on signal.
. Acts as signal boosters.
Types of repeaters:
1. Telephone Repeaters: Used to extend range of telephone signals.
2. Optical Communication Repeaters: Used to increase range of signals in fibre cable.
3. Radio Repeater: Used to extend coverage of radio signals.
. Depending on type of data they transmit, repeaters are of 2 types:
Analog Repeater:
- Used in channels that transmit analog signals.
- Consists of Amplifier, Filter circuits.
Digital Repeater:
- Used in channels that transmit digital signals.
- It amplifies, retimes, resynchronize and reshape pulses.
- Also called Digipeaters.
. Without a repeater, signal couldn't travel long distance without losing power.
. Repeaters regenerate signals and send them.
. In a network, repeaters take signals from router and passes the signals to group of devices with same quality.
