| 摘要 |
PROBLEM TO BE SOLVED: To heighten resistance against a disturbance wave, in a satellite positioning device for receiving a plurality of positioning signals having each different frequency. SOLUTION: A device includes the first reception part for receiving a satellite signal, and outputting it as the first satellite signal; the second reception part for receiving a satellite signal having a different frequency from the frequency of the first satellite signal, and outputting it as the second satellite signal; and a multiplexer for multiplexing the first satellite signal and the second satellite signal, and outputting the results. Each of the first reception part and the second reception part includes an amplifier for amplifying a signal in a satellite signal frequency band, and a level adjusting means for adjusting the level of an output signal from the amplifier. COPYRIGHT: (C)2009,JPO&INPIT |
