An 8.4-GHz dual maser front end for Parkes reimplementation

Details An 8.4-GHz dual maser front end for Parkes reimplementation An 8.4-GHz dual maser front end for Parkes reimplementation

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988tdar.nasa..214t&link_type=abstract

In its The Telecommunications and Data Acquisition Report p 214-228 (SEE N88-28178 22-32)

Physics

Antenna Design, Equipment Specifications, Ground Stations, Traveling Wave Masers, Waveguides, Cryogenics, Deep Space Network, Feed Systems, Voyager Project

Scientific paper

An 8.4 GHz front-end system consisting of a feedhorn, a waveguide feed assembly, dual masers, and downconverters is being reimplemented at Parkes as part of the Parkes-Canberra Telemetry Array for the Voyager Neptune encounter. The front-end system was originally assembled by the European Space Agency on the Parkes antenna for the Giotto project. It was also used on a time-sharing basis by the DSN as part of the Parkes-Canberra Telemetry Array to enhance the data return from Voyager 2 at Uranus. At the conclusion of these projects in 1986, the front-end system was dismantled, packed, and shipped to Europe. Part of the system was then shipped to JPL on loan for reimplementation at Parkes for the Voyager Neptune encounter. The system is being redesigned and refurbished for operation at Parkes. Tasks include new microwave front-end control cabinets, a closed-cycle refrigeration data acquisition system, a new noise-adding radiometer system, a front-end controller assembly, and refurbishment of the dual 8.4 GHz traveling-wave masers (TWMs) and waveguide feed system.

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