It is difficult to impossible to cure RF-in-the-shack at the transceiver end. The most certain solution is to work on the antenna system. Baluns at the antenna feedpoint and RF Chokes at the point where the feedline enters the shack are the most effective. In other words, keep the RF inside the feedline where it belongs and prevent it from getting onto the outside of the coax.
For those with attic antennas (or otherwise quite close to the shack), the situation is difficult to cure because you can have direct radiation from the antenna in the shack, and the only cure I know for that is to reduce the power. 73, Don W3FPR On 10/8/2011 8:26 AM, Howard Sherer wrote: > Only on 6M when I operate above 250W, I have RF getting into my SSB > audio, using either the the R or F mic connector but slightly worse with > the R mic connector. I have installed Fer chokes on the audio input > lines with no improvement. Any suggestions. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
