| 摘要 |
PCT No. PCT/SE89/00705 Sec. 371 Date Jun. 15, 1992 Sec. 102(e) Date Jun. 15, 1992 PCT Filed Nov. 30, 1989 PCT Pub. No. WO90/06627 PCT Pub. Date Jun. 14, 1990.Method and apparatus in mobile telephone system including base stations with a plurality of resonance modules, for separately adjusting each resonance module to its own frequency for receiving and expediting telephone signals at this frequency. In each resonance module, tuning is controlled to its given resonance position in relation to the frequency of the incoming signal, by an electromechanical drive which is connected for obtaining drive voltage by phase comparison. The drive voltage passes solely when two input signals differ in phase. When both signals are in phase, the drive voltage is zero, the drive then being stationary and the resonance module being adjusted in resonance to the input signal.
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