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Re: [RFI] 40 meter RFI

To: "RFI Reflector" <rfi@contesting.com>
Subject: Re: [RFI] 40 meter RFI
From: "Dave Hachadorian" <K6LL@ARRL.net>
Date: Wed, 5 Dec 2007 17:08:24 -0000
List-post: <mailto:rfi@contesting.com>
> All the lights trigger at the
> same time throughout the house which makes me suspect it 
> is the
> transmitter which is stimulated as opposed to the 
> receivers but this
> is of course just a guess.

That's more than a guess. It sounds like hard evidence to 
me. Try disconnecting the button wires from the transmitter 
to see if it still triggers with RF. If it still triggers, 
the rf is coming on the ac line. If it doesn't trigger, the 
button wires are the culprit. The button wires would be my 
guess. If it is the button wires, insert an effective toroid 
choke in the button wires near the unit, and add a .15 
microfarad ceramic capacitor with short leads across the 
button wire terminals on the transmitter unit.

Dave Hachadorian, K6LL
Yuma, AZ 

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