The AR133 family of products is a new generation multi-functional Rubidium Frequency Standard. The AR133 family of products includes several different sub versions and is one of the smallest atomic standards available today, where the accuracy and stability are derived from a quantum transition that occurs in a free rubidium atom. The unit utilizes a unique advanced technology, which allows reducing the unit’s size without sacrificing performance.

The AR133 is comprised of a unique DFLL (Digital Frequency Lock Loop) where a high performance crystal oscillator is locked to the rubidium atomic line using an embedded microprocessor and a special patented algorithm. The algorithm optimizes the performance vs. external disturbances, improves temperature stability, and enables very fine digital frequency control.

Please refer to the Datasheet for a detailed specification and a list of the different customized versions available. Please contact us if you require a unique specification not currently listed.