Primary frequency standards

Symmetricom’s hydrogen masers, cesiums have supported more military communications, satellite ground stations, and test & measurement applications than any other precision frequency references in the world.

Approximately 90% of the total weighting of all cesium clocks that contribute to the international timescale are Symmetricom’s, giving substance to claim that the world runs on Symmetricom time. Precision frequency references are the result of many years of research and development performed in the areas of atomic physics, electronics engineering and software design. This has resulted in precision frequency standards that deliver exceptional performance and unsurpassed accuracy, stability and reliability in the most challenging of environments. Symmetricom design and manufacture their own physics packages, in which a resonance in the hydrogen, cesium or rubidium atom is used as the basis for the stability and accuracy of an output reference signal. We also design and manufacture the supporting electronics, software and packaging for our products.