Current Activities of the National Standard Time and Frequency Laboratory of the Telecommunication Laboratories, CHT Telecom Co., Ltd., Taiwan

C.S. Liao, P.C. Chang, S.S. Chen

Abstract:	The National Standard Time and Frequency Laboratory of the Telecommunication Laboratories, CHT Telecom Co., Ltd., as the national laboratory for time and frequency metrology in Taiwan, is responsible for the maintenance and dissemination of the national time and frequency standards, and the development of telecommunication synchronization techniques. This report covers the four most important activities in the Time and Frequency area undertaken in Taiwan: - Clocks and time scales Eight HP 5071A high- performance cesium clocks Two active H-masers CH1-75 (tuned) A new national time scale generator of UTC (TL) is under development - Time transfer GPS and Glonass code and carrier-phase observations Two-way Satellite Time and Frequency Transfer Time transfer using optical fiber - Dissemination High-frequency Broadcasting Service Speaking Clock Service Computer Time Service (TCTS) system in Taiwan NTP Service - Other research activities Frequency synchronization using GPS carrier phase Network synchronization A phase-noise measurement system.
Published in:	Proceedings of the 34th Annual Precise Time and Time Interval Systems and Applications Meeting December 3 - 5, 2002 Hyatt Regency Reston Town Center Reston, Virginia
Pages:	431 - 435
Cite this article:	Liao, C.S., Chang, P.C., Chen, S.S., "Current Activities of the National Standard Time and Frequency Laboratory of the Telecommunication Laboratories, CHT Telecom Co., Ltd., Taiwan," Proceedings of the 34th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, December 2002, pp. 431-435.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In