| 摘要 |
To ensure frequency stability of a radio frequency in a radio communication apparatus for generating the radio frequency synchronizing with a transmission path frequency of digital data transmitted from a wire digital transmission path and so on. Concerning influence of a difference of a transmission path frequency that obstructs stability of a radio carrier frequency, the difference of a transmission path frequency 12b is compared with a high-stability radio reference clock 22a, the difference frequency 17a is detected by a counter 71, and frequency offset of a radio-station-transmission signal of a local oscillator 61 is made on the basis of the differential frequency. By the operation, the influence of the difference of the transmission path frequency that obstructs the stability of the radio carrier frequency 63a can be compensated.
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