Citation
Abstract
The DSN 64-m antenna in Spain (DSS 63) has been calibrated prior to its upgrading to a 70-m High Efficiency configuration in preparation for the Voyager Neptune encounter in August 1989. The S-band (2285-MHz) and X-band (8420-MHz) effective area efficiency and system noise temperature calibrations were carried out during July 1986 to establish a baseline system performance for this station. It is expected that the 70-m upgrade will result in at least a 1.9-dB G/T improvement at X-band relative to the 64meter baseline reference. This article is the first in a series which will document 64-m and High Efficiency 70-m and 34-m antenna performance improvements due to size increase, high-precision surface panel installation, dual-shaped reflector profiles for uniform illumination, microwave holographic surface panel adjustment, or combinations of the above elements.
Details
- Volume
- 42-90
- Published
- August 15, 1987
- Pages
- 103–115
- File Size
- 885.8 KB