| 摘要 |
In order to enhance an RF-AGC sensitivity when a station which may cause mutual modulation disturbance is detected, an automatic memory mode is executed so that data on the six stations with first to sixth highest field intensity are preset in a memory. When a receiver intends to receive an object station among the six preset stations, the differences in frequency between the object station and other preset stations are obtained, and whether or not the object station and each of the other stations retain such frequency relationship that may cause mutual modulation disturbance is detected, based on the frequency difference. With an expectation of mutual modulation disturbance, the RF-AGC is set to have higher sensitivity, while, without such expectation, it is set to have lower sensitivity.
|
