| 摘要 |
PURPOSE: A dual tuner for preventing the degradation of the receive sensitivity due to the signal loss is provided to prevent the signal loss due to the quarter and the receive sensitivity performance. CONSTITUTION: A high frequency processing unit processes broadcasting signal. An intermediate frequency processing unit(11) changes the high frequency signal processed at the high frequency processing unit into the intermediate frequency. The intermediate frequency processor performs the filter/amplification of the transformed signal and demodulates the broadcast signal selecting the intermediate frequency. A signal blocking unit interrupts the intermediate frequency signal.
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