| 摘要 |
A receiver has a tuner for converting a radio frequency (RF) signal of a television broadcast supplied thereto into an intermediate frequency (IF) signal, an IF circuit for amplifying the IF signal to obtain an amplified IF signal with a required band width, and a detecting circuit for detecting the IF signal supplied from the IF circuit to deliver a video signal and an audio signal. The receiver further has a trapping circuit formed in the IF circuit for trapping an interfering signal which is formed by converting, by the tuner, an RF signal of a frequency modulation (FM) broadcast whose frequency is adjacent to that of an RF signal of a television broadcast. The trapping circuit is set in an on state only when the television broadcast which RF signal frequency is adjacent to the frequency of the RF signal of the FM broadcast is selected, and the trapping circuit is set in an off state when a television broadcast other than the television broadcast is selected.
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