A receiving apparatus may be provided with a variable gain amplifier amplifying a received signal, an output level of which is detected by a level detection circuit. A comparing circuit compares an output from a level detection circuit to a reference level. There is a binarizing circuit and a detection circuit for detecting a switching of a gain of a variable gain amplifier. A slice level holding circuit holds, at substantially constant value, a slice level employed at the binarizing circuit. A counter circuit and at least one of the slice levels may be held at substantially constant value for a prescribed time when switching of the gain of a variable gain amplifier is detected, rendering at least partially ineffective any noise produced during switching of the gain of the variable gain amplifier.