Citation
Abstract
The X-band downlink receiver frequency is situated very close to the fourth harmonic of the S-band high-power transmitter. When wideband modulation is applied to the high-power transmitter, the sidebands of the fourth harmonic are of such magnitude to the X-band receiver that they interfere with X-band downlink or will saturate the X-band maser. To alleviate this problem, a fourth harmonic filter was added to the output of the high-power transmitter. No quantitative results of this experiment were obtained. To make an analytic measurement, a fourth harmonic analyzer has been developed to measure the power at the fourth harmonic of the S-band high-power transmitter with and without a fourth harmonic filter.
Details
- Volume
- 42-20
- Published
- April 15, 1974
- Pages
- 121–123
- File Size
- 352.2 KB