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What is the difference between amplifier and repeater?

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Wiki User
October 20, 2009 6:58AM

Answer

it is tempting to compare a repeater to an amplifier, but the comparision is inaccurate. according to Forouzan, an amplifier cannot discriminate between the intended signal and noise; it amplifies equally everything fed into it. a repeater does not amplify the signal; it regenerates the signal. when it receives a weakened or corrupted signal, it creates a copy, bit for bit, at the original strength.

a repeater is a regenerator; not an amplifier

a repeater forwards every bit; it has no filtering capability

a repeater connects segments of a LAN