FIELD: radio engineering. SUBSTANCE: known correction device that has amplifier and subtracter incorporated in N channel is provided with newly introduced first, second, and third multipliers, first and second low-frequency filters, filtering and control voltage shaping unit, controllable generator, switch, amplitude detector, and threshold comparison unit, as well as N 1 channels similar to N channel in composition of units and interconnections among them. EFFECT: enhanced degree of narrow-band noise suppression. 1 cl, 2 dwg
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