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Re: Topband: RF interference from 160m to GE Electric stove

To: Topband@contesting.com
Subject: Re: Topband: RF interference from 160m to GE Electric stove
From: "Gary Smith" <Gary@ka1j.com>
Reply-to: Gary@ka1j.com
Date: Sun, 06 Nov 2016 13:36:41 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
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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