| 摘要 |
PROBLEM TO BE SOLVED: To provide a car radio receiver 10 for DAB(digital audio broadcasting) that can suppress a noise output from a loudspeaker caused by an increased level of an RF signal outputted from a tracking filter 1 for processing a band III for an L band selection period. SOLUTION: Before switching an input of a band selection switch 20 from the band III to the L band, a control voltage at which the pass band of the tracking filter 18 includes no DAB reception signal of the band III is searched and the searched control voltage is determined for the control voltage of the tracking filter 18. The control voltage of the tracking filter 18 is maintained for the searched control voltage for the L band selection period.
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