| 摘要 |
PURPOSE:To perform the comparison of reception level quickly and stably, by storing data of a plurality of stations to each channel selection key and using a PLL synthesizer for the local oscillation section of a receiver receiving a station of the strongest level among them. CONSTITUTION:When a channel selection key 91 is selected, arbitrary two data among data area 101-109 are transmitted to a present data area 14 of a present data memory 13 and an inspection station area 15 with the control of a control section 11. A PLL synthesizer 12 is controlled with the data of the memory 13, a corresponding tuning voltage is introduced to a tuner 2 for tuning with the data of the memory 13. The output of the tuner 2 is given to an average circuit 4, and when this output is a given value or less, audio is interrupted and the data of the data area 15 is applied to the PLL synthesizer 12, and the output this time and the output of the circuit 4 are compared at a comparison circuit 5. If the output of the circuit 4 is greater, the data in the data 15 is changed to proceed similar comparison. |
