I thought I should add some photos of what
he made. His was a bit more complex with a
transformer and bridge rectifier. Mine was
more basic & I used a roller inductor but
it did the job.
I didn't shrink the photos so as to leave
more detail available when you click on a
photo.
http://doctorgary.net/RFI-1.jpg
http://doctorgary.net/RFI-2.jpg
http://doctorgary.net/RFI-3.jpg
http://doctorgary.net/RFI-4.jpg
http://doctorgary.net/RFI-5.jpg
73,
Gary
KA1J
> Another thing that might help if the
> ferrites don't do the job is to run a wire
> from a series variable capacitor and
> variable/tapped inductor, to the stove or
> possibly to the metal conduit the wires to
> the stove are going through. This, with an
> attachment to a counterpoise or ground.
>
> My father had problems when he would
> transmit on 80 and it would trigger the
> system that used house wiring to turn on
> various lights in the house when a phone
> call came in on her line, or the door bell
> was rung. She was totally deaf and needed
> this to get to her TTY setup for a voice
> operator to come in and translate speech
> to her printout.
>
> He did as I described and had a RF ammeter
> in line. When the capacitor/inductor was
> adjusted under a key down situation, you
> could follow the result on the ammeter and
> at the right setting, the interference
> stopped triggering the in-line receivers.
> Sometimes he needed to tweak the setting
> but it always worked for him.
>
> I think MFJ used to have something to do
> just this, I don't recall what they called
> it.
>
> Good luck & 73,
>
> Gary
> KA1J
>
> > Thanks to all the guys who answered my query - seems unanimous that
> > I should add Mix 31 Ferrites to the stove ac feed so just ordered
> > them from DX engineering - shud be installed and tested by the end
> > of the week.. Will probably also add some .05 or so bypass caps to
> > the line while I´m there - wouldn´t hurt !
> > tnx again - keep y´all posted..Jay NY2NY
> >
> >
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