[TenTec] Whirlpool Duet, Neptune, Orion

[Gary Hoffman]

Hehehehee.....I think that "put in a load" meant he did a load of
wash....not inserted a dummy load in the antenna line.  Of course I could be
wrong.

73 de Gary. AA2IZ


----- Original Message ----- 
From: "Robert & Linda McGraw K4TAX" <RMcGraw at Blomand.Net>
To: "Tentec" <tentec at contesting.com>; <richardcardwell at adelphia.net>
Sent: Tuesday, September 27, 2005 12:23 PM
Subject: Re: [TenTec] Whirlpool Duet, Neptune, Orion


> Rich:
>
> The fact that you did not observe any interference is attributed to the
fact
> that your load does not radiate nor does it receive for that matter.
That's
> an indication of a good load.
>
> Now, in most cases the control system of the washer does cause the chopped
> AC to create a good bit of noise on the HF bands.  The fact that it is on
a
> different circuit from the radio has little to no bearing on it either.
The
> neutral is common to both sides of the line and the neutral, depending on
> load balance, is always a few millivolts above true ground.  A few
> millivolts will radiate.
>
> I'd expect if you have a antenna near the washer you'd hear the noise. One
> of the other folks that complained indicated that his vertical is outside
> the wall where the Duet is located.  In another case, the fellow has his
ham
> shack in the same room as the laundry equipment.
>
> If you aren't bothered with it then good, don't consider "fixing it".  On
> the other hand, these machines do have controllers that cause and radiate
RF
> emissions.  The controller takes the 120VAC single phase and converts it
to
> 3 phase, quasi sine, to control the motor speed and direction.  There are
> steps that can be implemented to improve, reduce or totally correct the
> issue.  These include adding filtering in the form of common mode chokes.
> Unfortunately, the manufacturer does not have any support in this area so
> you are on your own.  The problem does not really come under FCC
compliance
> unless an official complaint is filed and even then, one could expect
little
> action.
>
> 73
> Bob, K4TAX
>
>
> ----- Original Message ----- 
> From: "Richard Cardwell" <richardcardwell at adelphia.net>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Tuesday, September 27, 2005 8:35 AM
> Subject: Re: [TenTec] Whirlpool Duet, Neptune, Orion
>
>
> > We have had a Duet Washer for two years now and I never noticed any
> > interferrence. So after following this discussion for a while, I put in
a
> > load and listened to 20m and 40m  with the result that there is NO
> > dedectible interferrence. Am I missing something here? My rig is on a
> > separate circuit so maybe that is a factor.
> >
> > Good news for a change.
> >
> > Rich, AA2BY
> >
> >
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>
>
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