Excellent! We can't attach files here, but you can download it. His website is k9yc.com. Download the rfi-ham PDF. There is no better information about common-mode chokes available anywhere else.
73, Mike www.w0btu.com On Mon, Nov 12, 2018, 5:02 PM Arthur Delibert <[email protected]> wrote: > David -- > > Suggest you take a look at the attached paper by Jim Brown. I live in a > fairly dense suburb where every house (including mine) has all the latest > RF noise-makers. Following Brown's suggestions, I've put large 31-material > clamp-on ferrites on both ends of my receive antenna feedlines (and > sometimes one in the middle), and it makes a very clear difference. > > Regards, > Art Delibert, KB3FJO > > > ________________________________ > From: Topband <[email protected]> on behalf of Rodman, David > <[email protected]> > Sent: Tuesday, October 23, 2018 6:41 AM > To: [email protected] > Subject: Topband: Common Mode > > I purchased some 7mm dia snap on cores for RG6 receive antenna coax. I > was wondering if anyone had any experience or suggestion as to how many one > would place on each lead. The feed lines are about 50% on the ground with > grass growing over or buried 2-3". The lengths vary from 300' to 750', > depending on the antenna I am using for listening. I was planning to place > them inside the station. I have nothing now and thought this would be > acceptable versus removing connectors and placing beads? Thank you. > > > --- > David J Rodman MD > Assistant Clinical Professor > Department of Ophthalmology > SUNY/Buffalo > > Office 716-857-8654 > _________________ > > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
