摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: an interfering signal is superposed upon a necessary received signal to exert a great effect on reception performance especially when received field intensity is weak because the interfering signal is picked up by a receiving antenna together with the necessary received signal when an interfering source and the receiving antenna are arranged relatively close to each other. SOLUTION: A level adjusting part 107 operates so as to match the level of an interfering signal in a transmission signal received by the receiving antenna 104 with that of an interfering signal detected by an interfering signal detecting antenna 105. COPYRIGHT: (C)2009,JPO&INPIT
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