Verfahren und Vorrichtung zur Einstellung der Frequenz für ein Funksendegerät

摘要

A frequency setting system for a radio transmission apparatus of the type transmitting a signal in the form of bursts and changing transmission frequency burst by burst. A frequency division data generator (30) feeds both a frequency division data signal representative of a frequency division number and a strobe signal representative of frequency setting to a frequency synchesizer (20). A strobe pulse is fed to the frequency synthesizer immediately after the end of the preceding burst. The frequency division data signal for the next burst can then be sent at any time in the period between that strobe pulse and the end of the burst to which it relates. The timings for generating the frequency division data signal and strobe signal do not need to be determined with regard to the locking time of the frequency synthesizer which is dependent on the kind of the synthesizer, and the frequency, etc.