[TenTec] Washing machine RFI - a problem solved

[Dave W7DPW]

We recently  purchased a new Neptune washer and have had it for several
weeks, I have noticed NO interferrence what so ever.  I guess that I'll
have to make a further check and let the list know..

dave W7DPW

----- Original Message ----- 
From: "John Holliman" <w5ot at aol.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Wednesday, September 28, 2005 2:36 AM
Subject: [TenTec] Washing machine RFI - a problem solved


> My wife's Neptune washer caused RFI every 17 Khz on most bands on my
> Tentec Omni VI, and was especially bad on 20 and 17 meter bands.  In
my
> case, the RFI seems to be generated by the motor control circuit
during
> certain parts of the wash cycle, and radiated by the house wiring
> through the power cord.  The solution was to use about $15 worth of
> clip-on ferrites (material type 31) on the power cord itself and on
the
> internal wiring connected to the power cord.
>
> Suggestion: use a portable SW receiver as detector and start
> experimenting with the ferrite filters.  You will be able to hear your
> progress.  Note that some interference is radiated from the plastic
> control panel cover, but that was negligible compared to the house
> wiring in my case.
>
> Good luck and good hunting,
> 73 de John, WA5TWL aka W5OT
>
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