[RFI] RFI From Ironman Inspire Treadmill

[Michael Tope]

----- Original Message ----- 
From: "Tim Goeppinger" <timgep at hotmail.com>
To: <rfi at contesting.com>
Sent: Tuesday, September 04, 2007 8:29 PM
Subject: [RFI] RFI From Ironman Inspire Treadmill


> This Spring, I had some severe RFI on 40 & 80 meters, and I DF'ed it with 
> my
> car's AM
> radio to my neighbor's house.  After questioning them for a while we 
> figured
> out the RFI
> is from their Ironman Inspire Treadmill.  The treadmill has a MSRP of 
> $1600,
> but I'm sure they
> paid less. Here it is:
> http://www.ironmanfitness.com/product.php?id=Inspire&cat=treads
>
> My neighbor is very cooperative, and we tried wrapping their power cord
> around the largest
> toroid that Amidon sells, and got in about 6 turns.  It reduced the RFI 
> from
> about an S9 to
> an S8.  I guess that's about 3 dB, but not enough.
>

Tim,

What is the material type (i.e. mix #77, #43) for the Amidon
toroid you wrapped the power chord with?

Mike, 
W4EF........................................................................