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The microprocessor-based synthesizer controllerImplementation and performance of the microprocessor-based controllers and Dana Digiphase Synthesizer (DCO) installed in the Deep Space Network exciter in the 64-meter and 34-meter subnets to support uplink tuning required for the Voyager-Saturn Encounter is discussed. Test data in tests conducted during the production of the controllers verified the design objective for phase control accuracy of 10 to the - 12 power cycles in eight hours during ramping. Tests conducted require a phase error between a theoretical calculated value and the actual phase of no greater than + or - 1 cycle. Tests included (1) a ramp over a period of eight hours using a ramp rate which covers the synthesizer tuning range (40-51 MHz) and (2) a ramp sequence using the maximum rate (+ or kHz/s) over the tuning range.
Document ID
19810004717
Document Type
Reprint (Version printed in journal)
Authors
Wick, M. R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 11, 2013
Publication Date
December 15, 1980
Publication Information
Publication: The Telecommun. and Data Acquisition
Subject Category
COMPUTER OPERATIONS AND HARDWARE
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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