On Fri,9/12/2014 3:45 PM, Joe Subich, W4TV wrote:
The common mode choke does not have sufficient choking impedance where the feedline is an odd multiple of 1/4 wavelength and the stress on the core can be very significant with high power on those bands.
That part of the problem can be solved by adding a good common mode choke on the coax near the antenna. See the Cookbook in k9yc.com/RFI-Ham.pdf for guidelines.
73, Jim K9YC ______________________________________________________________ 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]
