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Frequency References

Network Time Servers

The world runs on Symmetricom time

Atomic physics sets the standard for stability, accuracy and range of application in precision frequency reference packages worldwide. Our hydrogen, cesium and rubidium standards, and quartz oscillators support more military communications, satellite ground stations, and test & measurement applications than any other precision frequency references in the world. Our Chip Scale Atomic Clock (CSAC), the world’s smallest atomic reference, achieves historic breakthroughs in size, weight and power consumption.

Advanced research, cutting edge electronics engineering, superior manufacturing, and integrated software design all result in precision frequency standards that deliver exceptional performance and unsurpassed accuracy, stability and reliability in the most challenging environments.

 

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Cesium Frequency Standard
Accuracy, stability, and reliability of cesium time keeping standards meet the needs metrology labs, mobile satellite communications, and national timekeeping standards laboratories.
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Rubidium Frequency Standard
Our Rubidium Frequency units deliver stable and accurate frequency reference signals used in precision test and measurement applications, telecommunications, tactical, shipboard and airborne environments where advanced communications, navigation and targeting systems requiring a stable reference that can function in demanding conditions.
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Chip Scale Atomic Clock (CSAC)
The world’s first chip scale atomic clock, the SA.45s CSAC measures less than 16cm3 cc in volume, is only 0.45 inches high, weighs just 35 grams and consumes a mere 125mW of power. Such breakthrough performance opens up an entirely new classes of portable applications such as marine geophysical sensors, backpack IED jammers, backpack military radios, unmanned aerial vehicles (UAVs) and military GPS receivers.
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Quartz Frequency Reference
Our quartz crystal oscillators exhibit unusually high spectral purity at frequencies close to the carrier frequency, which makes it ideal for use in a wide variety of applications with stringent requirements for precision time and frequency in radar systems, missile range timing systems, deep space communications, satellite command terminals, GPS monitoring stations, calibration labs and test equipment.
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Active Hydrogen Maser
The only Active Hydrogen Maser commercially available in the US delivers exceptional long-term stability and is currently used as an atomic frequency standard to set the international time scale.
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High Reliability/Ruggedized Sources
Ruggedized cesium frequency and time standards are designed for extreme, stand-alone dependability and reliability in adverse operating conditions in telecommunications timing, calibration and metrology laboratories, satellite tracking stations and spaced based master time standards.
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