| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a beat occurs in an audible frequency band because of a little deviation between the oscillation frequencies of the receiving systems when receiving the broadcast signals of the same frequency in the plurality of receiving systems. SOLUTION: An on-vehicle radio receiving apparatus 1 which includes a first receiving system 10 and a second receiving system 20 for receiving a broadcast signal of a frequency relating to a receiving target, wherein each of the receiving systems is provided with a first VCO part 12 and a first PLL part 1 (a second VCO part 22 and a second PLL part 25) for generating an oscillation frequency corresponding to the frequency of the receiving target, has a microcomputer 30 for controlling the first PLL part and the second PLL part to deviate the oscillation frequencies corresponding to the frequency of the receiving target for±10kHz between the receiving systems so that a differential between the oscillation frequencies of the first receiving system and the second receiving system becomes about 20kHz when it is judged that the receiving frequency relating to the receiving target is equal in the first receiving system and the second receiving system. COPYRIGHT: (C)2005,JPO&NCIPI
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