AUTOMATIC FREQUENCY CONTROLLER

摘要

PROBLEM TO BE SOLVED: To shorten a time required for drawing AFC control and to reduce a frequency error remaining after drawing in accordance with a TDMA system and a CDMA system.

SOLUTION: An AFC device 100 corresponding to a frequency band of CDMA AFC-controls a carrier frequency of CDMA, and calculates a correction value equivalent to the deviation of the carrier frequency after drawing. The calculated correction value is corrected to a correction value for TDMA in a correction part 121. An AFC device 150 corresponding to the frequency band of TDMA uses the correction value for TDMA which is corrected in the correction part 121 as an initial value of AFC control.

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