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Re: Topband: Help with RFI

To: Mike Waters <mikewate@gmail.com>
Subject: Re: Topband: Help with RFI
From: Brian Machesney <nekvtster@gmail.com>
Date: Sun, 13 Jan 2013 08:08:36 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Wrapping everything in ferrite did not solve my 160m RFI problems. OZ7C
provided a filter circuit that I use successfully:

http://www.ddxg.dk/oz7c/adsl/adsl_160m_filter.pdf

G3VMW has done additional work:

http://www.rsars.org.uk/ELIBRARY/BBCONNECT.pdf

73 -- Brian K1LI

On Sat, Jan 12, 2013 at 10:38 PM, Mike Waters <mikewate@gmail.com> wrote:

> I wrap a few turns of the CAT 5 Ethernet cable coming into the back of my
> shack PC around a few stacked 2.4" diameter #31 ferrite cores. Works for
> me.
>
> 73, Mike
> www.w0btu.com
>
> On Sat, Jan 12, 2013 at 4:48 PM, W7KW <w7kw.terry@gmail.com> wrote:
>
> >
> > I am having a problem with RF getting into my Ethernet cables.  Anyone
> > have any recommendations for a clamp-on filter that would help remove 1.8
> > MHz RF?
> >
> _________________
> Topband Reflector
>
_________________
Topband Reflector

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