Atomic Clock
Atomic Clock is a precise clock with an electrical oscillator regulated by the natural vibration frequencies of an atomic system, such as a beam of cesium atoms, ammonia atoms, or rubidium.

Atomic clocks are inherently more accurate than quartz clocks, because their source of oscillation depends on atomic characteristics, while quartz clocks depend on the precision of the manufacturing process used to create the quartz crystal. Quartz clocks also tend to vary more with temperature.

CsIII Model 4310B

Lightweight, compact, economical cesium frequency standard

Weighing less than 30 pounds, the CSIII Model 4310B delivers higher stability, lower phase noise and longer life for demanding users in communications, timing, synchronization and other applications. Designed for portability, the CSIII is a functional, versatile Cesium Reference Standard that performs as a primary reference standard and calibration standard in applications...
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Hydrogen Maser

MHM 2010 Active Hydrogen Maser

The world's most widely installed active hydrogen maser for applications that require extreme frequency stability, low phase noise and long service life. 
The MHM 2010TM is the only commercially available active hydrogen maser with stand-alone cavity switching auto tuning manufactured in the U.S.
This technique enables the MHM 2010TM to deliver long-term frequency stability normally only attributed...
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TimeCesium 4400

Cesium Primary Reference Source

Generate superior, highly reliable Stratum 1 synchronization signals for advanced telecom network services.
Based on the latest Cesium III technology from Microsemi our TimeCesium® 4400 is an autonomous Primary Reference Source designed for telecom network operators to generate superior and highly reliable G.811 synchronization signals for advanced network services.
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Cesium Primary Frequency Standard

Unsurpassed accuracy, stability and reliability for demanding laboratory and field applications.
Accurate, stable, and capable of delivering extremely predictable time and phase for long periods, the 5071A meets the needs of leading-edge metrology and calibration labs. Used with GPS systems, the 5071A provides master clock integration for 
telecommunication, satellite communication, and navigation systems.
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Designed for adverse environmental conditions

The 8200 combines excellent frequency stability and low phase noise in a hermetically sealed, shock and vibration hardened package. It is an ideal choice for a wide variety of ground tactical, shipboard, and airborne applications.
The 8200 is a precision rubidium oscillator designed to withstand a wide range of operating environments with minimal degradation in frequency accuracy and stability.
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Miniature Atomic Clock​​ - MAC

SA.31m, SA.33m & SA.35m

Miniature Atomic Clock (MAC).
Rubidium Miniature Atomic Clock (MAC) features compact design and low power consumption.

Cost effective, and easily adaptable to a wide variety of timing and synchronization applications, Microsemi's SA.3Xm is the world's first commercially available atomic clock. 

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Chip Scale Atomic Clock - CSAC


Unmatched combination of breakthroughs - reduced Size, Weight and Power consumption (SWaP) - brings the accuracy and stability of atomic clocks to portable applications.
The Microsemi SA.45s CSAC is the world's first commercially available chip scale atomic clock, providing the accuracy and stability of atomic clock technology while achieving true breakthroughs in reduced size, weight and power consumption.
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