Preliminary Study of TA1000: Performance and Time-Keeping Application

The time-keeping system of National Time Service Center (NTSC) has shown rapid improvement in the difference between coordinated universal time (UTC) and local realization of universal coordinated time UTC(NTSC). Cesium atomic clock plays an important role in time-keeping system. Cooperated with a company, NTSC has successfully developed a new optically-pumped cesium atomic clock TA1000. This paper makes a preliminary study of TA1000 from two aspects: performance and time-keeping application. Compared with 5071A cesium atomic clock of Microsemi, the results demonstrate that TA1000 and 5071A perform at the same level in terms of frequency accuracy and frequency stability. TA1000 is a great substitute for the 5071A.