On Wed,5/18/2016 5:23 AM, Warren Merkel wrote:
I would recommend much more separation of antennas and feedline than I have, if possible.
Your antenna, an off-center-fed Windom, is notorious for generating common mode current on the feedline, and there's no way to choke it effectively to kill that current. So what you're calling a feedline Mother Nature calls part of the antenna. THAT'S a primary cause of your problem.
If you're having issues on 80M, you'll need at least 13 turns of the RG6 through a single #31 toroid to make a dent in the common mode current.
Grounding the dish is important for lightning safety, but it is NOT part of a solution for RFI. The earth is not a "sump" into which RF is poured.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
