Achieving frequency synchronization by GPS disciplined reference signal

A method for achieving frequency synchronization between two distantly positioned high frequency oscillators is presented. The method is based on using GPS disciplined 10 MHz reference sine waves and phase locked dielectric resonator oscillators. In order to be able to measure the frequency difference between high frequency sources precisely, frequency down-conversion by a mixer is implemented. The presented method enables the usage of frequency sources at various locations to work in sync with each other, which is essential for accurate frequency measurements and radar applications.