K9YC, Jim Brown, has an excellent set of papers and presentation slide sets on antenna chokes and solving RFI issues that should help with all aspects of your issues at the following web addresses:
http://audiosystemsgroup.com/RFI-Ham.pdf http://audiosystemsgroup.com <- homepage Very good coverage of antenna and transmission line optimization to minimize common mode noise and preventing RF from getting into your ham shack or to your operating position. 73, Bill af6ae On Sun, Dec 19, 2021 at 4:27 PM David F. Reed <[email protected]> wrote: > > Due to some HOA C&R, I am confined to attic and gutter antennas for the > time being. > > I am getting a bit of RFI on occasion into my PC; it manifests itself > mainly by apparently disconnecting the com port from Commander. When > this happens, I can restore functionality by selecting a different com > port, and then re-selecting the original correct com port. > > I am grounded to a 10' ground rod about 8 ft. from the station via 2" > copper strap. I did install ferrite beads on the USB cables at the back > of the PC as well as on the power cord, and this has reduced the > frequency of occurrence, but I would like to eliminate it altogether. > > Any other ideas and suggestions would be most appreciated! > > Thanks & 73 de Dave, W5SV > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
