On 1/27/2012 8:40 AM, Charles Moizeau wrote: > I am willing to insert a common-mode choke, but don't know what to measure > beforehand to learn if one is needed.
There is NO DOWNSIDE to using a good common mode choke other than cost and weight, and as W4TV has noted, there are downsides to NOT using one. As it turns out, there was a typo in the link I posted to my RFI tutorial, which includes Cookbook guidelines for winding effective ferrite chokes. The correct link is http://audiosystemsgroup.com/RFI-Ham.pdf 73, Jim K9YC _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
