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Exciter For X-Band Transmitter And ReceiverReport describes developmental X-band exciter for X-band uplink subsystem of Deep Space Network. X-band transmitter-exciting signal expected to have fractional frequency stability of 5.2 X 10 to negative 15th power during 1,000-second integration period. Generates coherent test signals for S- and X-band Block III translator of Deep Space Network, Doppler-reference signal for associated Doppler-extractor system, first-local-oscillator signal for associated receiver, and reference signal for associated ranging subsystem. Tests of prototype exciter show controlling and monitoring and internal phase-correcting loops perform according to applicable design criteria. Measurements of stability of frequency and of single-sideband noise spectral density of transmitter-exciting signal made subsequently.
Document ID
19890000502
Document Type
Other - NASA Tech Brief
Authors
Johns, Carl E. (Caltech)
Date Acquired
August 14, 2013
Publication Date
October 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 10
ISSN: 0145-319X
Subject Category
ELECTRONIC SYSTEMS
Report/Patent Number
NPO-17261
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.