PURPOSE: A pass band variable intermediate frequency filter is provided to supply a filtering characteristic according to an intermediate frequency which is variably inputted by pass band. CONSTITUTION: A band pass filter unit(402) is located between a frequency conversion integrated circuit(401) and a demodulation unit(406). The band pass filter unit filters an intermediate frequency signal outputted from the frequency conversion integrated circuit. A band variable unit(403) varies a pass band of the band pass filter unit. A switching unit(404) connects or separates the band variable unit.
