| 摘要 |
PROBLEM TO BE SOLVED: To provide an FPU receiving device capable of reducing deterioration in transmission quality due to interference of an adjacent wave by judging the deterioration in transmission quality due to the interference of the adjacent channel signal wave by quantitatively detecting a transmission state. SOLUTION: An intermediate frequency band of the FPU receiving device is provided with a band-pass filter of a desired wave BPF 2A, a lower adjacent wave BPF 3A, and an upper adjacent wave BPF 4A, and outputs thereof are detected by detecting circuits 2 to 4 to display a reception power level on a console panel. When an adjacent wave has a higher reception electric field than the desired wave, a desired wave level is corrected based upon the detection output difference between the adjacent wave and desired wave to maintain a desired wave reception electric field display function, and AGC operation of a reception high-frequency unit corresponding to a radio wave environment is performed. COPYRIGHT: (C)2008,JPO&INPIT |
