| 摘要 |
PURPOSE:To decrease power consumption by changing over the reception to the single reception when the reception is possible without relying on the diversity reception. CONSTITUTION:A supervising circuit 12 supervises a reception output level 3 outputted from a reception section 2 and when the circuit 12 detects that the level 3 exceeds a prescribed reference level, an operation output is transmitted to a reception section 6 so as to interrupt the power supply circuit, the reception section 6 is made inactivated so as to stop the diversity reception and the circuit 12 changes over the reception to the single reception by the reception section 2 only. Further, the circuit 12 supervises a reception output 7 of the reception section 6 and when the output 7 reaches a reference level or over, the circuit 12 interrupts the power supply circuit of the reception section 2. Then when the reception output supervised by the circuit 12 reaches the reference level or below, the circuit 12 detects it and restarts the diversity reception. |
