Quote Originally Posted by N9FE View Post
A friend extended his. Living room sit, Radio in basement. I think twenty five feet. It gets rf in it on 20 meters with the amp on. Otherwise.. Totally fine. Talks on it everyday. The good cable ain't cheap though. Monster cable from tiger elec he used.
One wonders if one of those K-Com (or similar) telephone filters could be adapted to this application and used to knock out the RFI along the control cable.