Physics
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986tdar.nasa..158t&link_type=abstract
In its The Telecommunications and Data Acquisition Report p 158-164 (SEE N87-15329 07-32)
Physics
Deep Space Instrumentation Facility, Deep Space Network, Traveling Wave Masers, Field Effect Transistors, Transistor Amplifiers, Uranus (Planet), Very Long Base Interferometry, Voyager Project
Scientific paper
Two 8.4GHz low-noise traveling-wave masers (TWMS) with effective input noise temperatures of 3.6 to 3.9 K and bandwidth in excess of 100 MHz have been supplied to the Deep Space Network. These TWMs are used on the 64-meter antennas at Deep Space Stations 14 and 43 to meet the requirements of the Voyager Uranus encounter. The TWMs have improved isolator assemblies and new interstage matching configurations to reduce gain/bandwidth ripple. They are equipped with followup Field Effect Transistor Amplifiers as part of the design to meet the 100-MHz bandwidth requirements of very long baseline interferometry.
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