Citation

Abstract

Power density measurements were made at DSS 13 in the near field of the 26-m antenna to determine if radio frequency (rf) fields generated by the 20-kW transmitters could be responsible for the failure of three solid state (FET) rf amplifiers. These amplifiers are used in the SETI Radio Spectrum Surveillance System, which is currently located at the site. Measurements were made independently for one transmitter at 2115 MHz, one at 7150 MHz, and both transmitters together. Measurement results are tabulated and compared with predicted power densities under the measurement conditions. The results agree with predictions within a factor of two, the predictions appear to give ‘‘worst case’’ values. Measurements indicated that amplifier failures are not attributable to the transmitter.

Details

Volume
42-91
Published
November 15, 1987
Pages
325–329
File Size
153.3 KB