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electronics and communication engineering communication systems
1. The typical squelch circuit
(A): cuts off audio amplifier when carrier is absent
(B): cuts off IF amplifier when AGC is maximum
(C): cuts off IF amplifier when AGC is minimum
(D): eliminates RF interference when signal is weak
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By: guest on 01 Jun 2017 11.49 pm
To suppress noise when carrier is absent, squelch circuit cuts off audio amplifier.
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