X-band noise temperature effects of rain on DSN antenna feedhorns
Abstract
Simulated rain tests were carried out to determine the noise temperature contribution of liquid water adhering to the aperture cover material on both a standard DSN X-band feedhorn and on an S/X-band common aperture feedhorn. It was found that for the particular common aperture feedhorn tested, system noise temperature increases were much greater when the plastic horn cover material was old and weathered than when it was new. The age and condition of the aperture cover material is believed to be a major factor in the amount of degradation experienced by a telecommunications system during rain events.
- Publication:
-
The Telecommunications and Data Acquisition Report
- Pub Date:
- November 1982
- Bibcode:
- 1982tdar.nasa...66S
- Keywords:
-
- Horn Antennas;
- Noise Temperature;
- Rain;
- Antenna Feeds;
- Coverings;
- Plastics;
- Signal Fading;
- Communications and Radar