PURPOSE:To maintain an automatic equalizer to a desired stable point, by resetting the tap factor of filter of the automatic equalizer to zero when the input power level of received signals increases and exceeds a prescribed power value. CONSTITUTION:A tap factor generator is composed of a correcting gain setting section 301, adder 302, tap factor register 305, and selector 304. When strong interference occurs and the signal from an input terminal goes to ''1'', the selector 304 is switched and the tap factor register 305 is reset.
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