Synchronizing pcm and pseudorandom clocks

(57) In the system which has PN clock signal which carried out summary reception, the method for supplying the synchronous system clock signal which has the reduced jitter is indicated, and this synchronous system clock signal synchronizes with a receiving PN clock signal. This method includes supplying the stable high-frequency reference signal, carrying out dividing of this high-frequency reference signal, and supplying the system clock signal which has two or more system clock phases. Moreover, this method includes choosing a system clock phase from two or more system clock phases based on a receiving PN signal, so that adjustment is possible, in order to supply a synchronous system clock signal. A receiving PN clock signal is restored by performing PN phase adjustment of a receiving PN clock signal. A tracking control signal is given based on PN phase adjustment, and based on this tracking control signal, a system clock phase is chosen so that adjustment is possible. Before carrying out dividing of the high-frequency reference signal, it can carry out multiplying. Subject The clock signal in sync with PN clock of the base station is generated in a low jitter in a circuit simple within a remote network terminal (RNT).