I only have a couple of those lamps and a bit of bypassing in the fixture
knocked it down a lot. Since they are seldom on when Im at the radio its
tolerable or I shut them off.
The one problem I havent been able to cure is a pair of light dimmers so I
removed them. Ive heard there are RFI proof versions but last time I looked
they were close to $30 each.....I dont need dimmers that bad!
Anyway I'll sign on to that RFI forum and see what they have in the
archives.
Carl
KM1H
----- Original Message -----
From: "Mike Waters" <[email protected]>
To: <[email protected]>
Cc: "topband" <[email protected]>
Sent: Saturday, March 01, 2014 11:25 PM
Subject: Re: Topband: Grounds
Thanks. I have actually studied your document Jim, and have recommended it
to many others. :-)
I used what I had here. There are several bifilar turns through some of
those big #43 beads. I even hung some #31 cores on the lamps themselves
(which helped a little) and on the Romex feeding the fixture. That's all I
have had time to do up to this point.
I have some 2.4" #31 cores here I could use. But there's another problem
that I want to fix: exactly how the RFI from that fixture is getting into
my RX system. It's over S9 on my IC-765 on several 160m frequencies. But I
just don't have the time lately.
I didn't mean to hijack this thread. Anyway, time to go play in the
contest
now.
73, Mike
www.w0btu.com
On Sat, Mar 1, 2014 at 10:12 PM, Jim Brown
<[email protected]>wrote:
Big #43 beads on the ballast leads didn't fix it.
Of course not. A choke for 160M requires many turns on one or more #31
cores. Study k9yc.com/RFI-Ham.pdf
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4335 / Virus Database: 3705/7138 - Release Date: 03/01/14
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
