AMPLIFIED_NOISE_LIMITER_FOR_SW_RECEIVERS

Published:2009/6/24 2:44:00 Author:May | From:SeekIC

The noise limiter circuit has a preamplifier clipper, and a switchable audio bandpass filter. Audio levels in the 5- to 50-mV range are amplified in a preamp to several volts p-p, fed to a clipper, voice band filter, then to a narrow band active filter which can be switched in and out of the circuit.



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