| 摘要 |
PROBLEM TO BE SOLVED: To shorten time from actuation of a second receiver until stabilization of an amplification degree in a signal of a second amplifier. SOLUTION: At a demodulator 8 in a reception module 3, a signal based on a signal level detected by a first detector 22 is supplied to the second amplifier 16 as an amplification degree adjustment signal, thus setting an AGC voltage supplied to the second amplifier 16 to a value close to a fixed value to be stabilized finally when the second receiver 7 is operated. Therefore, the AGC voltage supplied to the second amplifier 16 is stabilized toward the fixed value from the value close to the fixed value, thus shortening time from actuation of the second receiver 7 until stabilization of the AGC voltage supplied to the second amplifier 16 to a fixed value finally. COPYRIGHT: (C)2007,JPO&INPIT
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