Citation
Abstract
Measurements made on the frequency stability of the DSS-13 34-m-diameter Beam Waveguide (BWG) antenna showed that at 46.5- and 37-deg elevation angles, the BWG antenna stability at 12.2 GHz was between 1.3 and 2.2 x 107}5 forr= 1024 sec and good weather conditions. These frequency stability values apply to the portion of the antenna that includes the main reflector, subreflector, tripod legs, and the six BWG mirrors. The test results reported in this article are believed to be the first known successful measurements of the stability of the microwave optics portion of a large antenna to a level of 1 or 2 parts in 10'°.
Details
- Volume
- 42-110
- Published
- August 15, 1992
- Pages
- 151–162
- File Size
- 358.2 KB