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The SA-2239/WLQ-4(V) Cutty Sark distribution systemA redundant frequency and time distribution system provides 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 1 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, 1 pps and 1 ppm.
Document ID
19810018965
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vulcan, A. (Frequency Electronics, Inc. Mitchel AFB, NY, United States)
Ho, J. (Frequency Electronics, Inc. Mitchel AFB, NY, United States)
Date Acquired
August 11, 2013
Publication Date
March 1, 1981
Publication Information
Publication: NASA. Goddard Space Flight Center Proc. of the 12th Ann. Precise Time and Time Interval. and Planning
Subject Category
Communications And Radar
Accession Number
81N27503
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19810018929Collected WorksProceedings of the 12th Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
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