Citation
Abstract
A new dual-frequency feed system at Goldstone is designed to receive the Phobos spacecraft signal at L-band (1668 +40 MHz) and transmit to the spacecraft at C-band (5008.75 +5.00 MHz) simultaneously. Hence, calculations of the time delay from the C-band range calibration coupler to the phase center of the L-C dual feed and back to the L-band range calibration coupler are required to correct the range measurements. Time delays of the elements in the dual-frequency feed system are obtained mostly from computer calculations and partly from experimental measurements. The method used and results obtained are described in this article.
Details
- Volume
- 42-96
- Published
- February 15, 1989
- Pages
- 126–131
- File Size
- 154.0 KB