| 摘要 |
In a radio selective call receiver, the sensitivity of a radio receiver is set to a lower sensitivity level which is lower than a normal sensitivity level of the radio receiver. In the lower sensitivity level, a plurality of predetermined channels are searched for a receiving channel while receiving a radio signal. Therefore, a receiving channel with higher signal level can be selected. When no receiving channel is found in the lower sensitivity, the channel search is performed in the normal sensitivity.
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