ENHANCED FREQUENCY DETERMINATION FOR SPECTRUM ANALYZERS AND THE LIKE

摘要

ENHANCED FREQUENCY DETERMINATION FOR SPECTRUM ANALYZERS OR THE LIKE An arrangement is provided for enhancing the accuracy of frequency determination in a spectrum analyzer or the like having a local oscillator heterodyned with and locked to a frequency comb, by providing a determination of whether the local oscillator frequency is above or below the comb frequency to which it is locked, thereby avoiding ambiguity in the determination of the local oscillator frequency.