If it is that good, Dave, why not send it and
how to build it to ARRL to include in QST for
the benefit of ALL of us?
73 - Mac, K2GKK/5
Since 30 Nov 1953
Oklahoma City, OK
USAF (Retired) 61-81
FAA (Retired) 94-10
________________________________
From: RFI <rfi-bounces+k2gkk=hotmail.com@contesting.com> on behalf of David
Eckhardt <davearea51a@gmail.com>
Sent: Friday, October 2, 2020 16:31
To: Hare, Ed W1RFI <w1rfi@arrl.org>
Cc: rfi <rfi@contesting.com>
Subject: Re: [RFI] NEW REFRIGERATOR/FREEZER from KITCHENAID
Ed, I'm well aware of the FCC exemptions for home appliances. That's why I
took it on myself to solve the problem with the well over-designed CM
choke. Just wish we could post pictures on this site.
Dave - WØLEV
On Fri, Oct 2, 2020 at 8:48 PM Hare, Ed W1RFI <w1rfi@arrl.org> wrote:
> When it comes to appliances, there may be nothing to enforce. Appliances
> are categorically exempt from any specific emissions limits under Part 15.
> A refrigerator with removed filtering components may be perfectly legal,
> subject only to the manufacturer's requirement to use "good engineering
> practice," whatever that means and a requirement for the operator of the
> device to use it in a way that does not cause harmful interference to
> licensed radio services.
>
> -----Original Message-----
> From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> On Behalf Of David
> Eckhardt
> Sent: Thursday, October 1, 2020 11:19 AM
> To: KD7JYK DM09 <kd7jyk@earthlink.net>
> Cc: rfi <rfi@contesting.com>
> Subject: Re: [RFI] NEW REFRIGERATOR/FREEZER from KITCHENAID
>
> Removal of the components that allow SMPS's to pass FCC, if they are
> tested at all from China, has become a common practice. It's a juicy given
> for the contract manufacturers! This practice has been common for nearly
> 15 to
> 20 years. You guessed it: "With Love, from China". Most are not even
> tested for EMI/RFI these days. And China has taught others to follow in
> their footsteps. Again........, where is the FCC???
>
> Dave - WØLEV
>
> On Thu, Oct 1, 2020 at 2:27 PM KD7JYK DM09 <kd7jyk@earthlink.net> wrote:
>
> > "I wouldn't be surprised if the noisy circuit has mounting holes on
> > the pc board for RF suppression components that they added to pass a
> > compliance test, then left off in production."
> >
> > No surprise there, if so. 20 years ago, I worked for a company
> > designing much of what we use to communicate online now. Prototype
> > power supplies were designed, and tested, exceeding specs. They were
> > reviewed state-side, found good, and put into production. Somewhere
> > around 10,000 - 15,000 units were ordered to be distributed with the
> > product as there was a considerable price drop at those numbers, far
> > less than the FCC/CE/UL certified units from Digikey, at under $3 a pop.
> > Later, it was found out why. ALL suppression, and filtering
> > components were removed. It was easier to send out the bad units,
> > they worked, than find a legitimate supplier in Asia. Eventually, the
> > company went under, and all assets auctioned off. God only knows
> > where the garbage SMPSUs were later used.
> >
> > Kurt
> >
> > _______________________________________________
> > RFI mailing list
> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
> >
>
>
> --
> *Dave - WØLEV*
> *Just Let Darwin Work*
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
--
*Dave - WØLEV*
*Just Let Darwin Work*
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