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Widely separated clocks with microsecond synchronization and independent distribution systems
Thomas L. Davis,Robert H. Doherty +1 more
- Vol. 5, pp 267
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TLDR
This paper describes a method which offers an improvement in synchronization of three orders of magnitude and is obtained by use of the Loran-C navigation system as the link between a master clock at Boulder, Colorado and any slaved clock anywhere in the Loron-C service area.Abstract:
In a majority of timing applications, a problem exists in setting two or more clocks to agree with one another. Present techniques using WWV or other HF broadcasts allow clocks to be synchronized within 1 msec. This paper describes a method which offers an improvement in synchronization of three orders of magnitude. Microsecond synchronization is obtained by use of the Loran-C navigation system as the link between a master clock at Boulder, Colorado and any slaved clock anywhere in the Loran-C service area. The timing system also includes a unique method for distribution of several time code formats on a single UHF channel.read more
Citations
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Journal ArticleDOI
Timing Potentials of Loran-C
TL;DR: The Loran-C (Cytac) system as discussed by the authors is capable of synchronizing and setting clocks to a relative accuracy of better than 1?sec throughout the system's service area.
Journal ArticleDOI
A review of satellite time transfer technology: Accomplishments and future applications
Robert S. Cooper,Andrew R. Chi +1 more
TL;DR: A brief review of the research accomplishments by NASA in meeting the needs of the space program for precise time in satellite tracking is presented.
References
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Journal ArticleDOI
Timing Potentials of Loran-C
TL;DR: The Loran-C (Cytac) system as discussed by the authors is capable of synchronizing and setting clocks to a relative accuracy of better than 1?sec throughout the system's service area.
Journal ArticleDOI
Power requirements and choice of an optimum frequency for a world-wide standard-frequency broadcasting station
A.D. Watt,R.W. Plush +1 more
TL;DR: Calculations presented for the exp ected tran smissio n characLe ri sLics suggest minimum observation of J 5 to 30 min appear to be required for t hese tr a nsmi tter powers in order to obtai n a precisio n of frequency.
Journal ArticleDOI
On the theory of reflection of low- and very-low-radiofrequency waves from the ionosphere
Proceedings ArticleDOI
Timing Potentials of LORAN-C
TL;DR: The Loran-C (Cytac) system as mentioned in this paper is capable of synchronizing and setting clocks to a relative accuracy of better than 1 μsec throughout the system's service area.