The SA-2239/WLQ-4(V) Cutty Sark Distribution System

Alfred Vulcan, John Ho

Abstract:	This paper describes a redundant frequency and time distribution system providing a multiplicity of Isolated outputs, all of which are derived from three atomic frequency standards. The distribution system monitors input parameters of the signals coming from the Cesium Standards and selects one to be the primary standard, phase locks an internal oscillator which has excellent aging characteristics in the open loop mode and acts as a filter to provide phase noise improvement, and generates ! megahertz and 100 kHz by direct synthesis. Additionally, the system distributes RF and timing signals consisting of 5 MHz, 1 MHz, 100 kHz, BCD Time-of-Day, I pps and 1 ppu.
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:	765 - 785
Cite this article:	Vulcan, Alfred, Ho, John, "The SA-2239/WLQ-4(V) Cutty Sark Distribution System," Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting, Greenbelt, Maryland, December 1980, pp. 765-785.
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