Development of a Sub-Miniature Rubidium Oscillator for SEEKTALK Application

H. Fruehauf, W. Weidemann, E. Jechart Efratom

Abstract:	For some time now the Efratom 4-inch cubed Rubidium Oscillator has been used in numerous navigation and secure communication systems. The SEEKTALK program, however, and other programs of similar nature, present new challenges to oscillator makers in terms of warm-up time, size, power, operating environment, and unit cost in large quantities. This paper will present our approach to these new wart-up and size challenges as well as the problems involved in these tasks. In order to define the improvements needed, a comparison will be made between the performance of the present off-the-shelf M-100 Military Rubidium Oscillator and that expected for the Sub-Miniature Rubidium Oscillator that is currently in development called M-1000). Methods of achieving 1.5 minute warn-up will be discussed as well as improvements in performance under adverse environmental conditions, including temperature, vibration, and magnetics. Expected performance curves of the new oscillator as well as our microelectronics approach will be presented. An attempt will be made to construct an oscillator error budget under a set of arbitrary mission conditions.
Published in:	Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting December 2 - 4, 1980 Goddard Space Flight Center Greenbelt, Maryland
Pages:	719 - 742
Cite this article:	Fruehauf, H., Weidemann, W., Efratom, E. Jechart, "Development of a Sub-Miniature Rubidium Oscillator for SEEKTALK Application," Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting, Greenbelt, Maryland, December 1980, pp. 719-742.
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