While I was still working I can't relate how many problems I solved by
simply installing a common mode choke as you just did. But since home
appliances are exempt from any FCC regulation wrt EMC/RFI, nothing is
done. It might add a couple of bucks to the cost of manufacturing.
Dave - WØLEV
On Mon, Apr 25, 2022 at 9:10 PM Steve K8JQ via RFI <rfi@contesting.com>
wrote:
> Hi Mike.
>
> I acquired a Whirlpool Cabrio Platinum several years ago and found it
> generated noise that made the lower HF bands pretty much useless. I did
> not check the higher bands.
>
> I wrapped ten turns of the machine's power cord through a ferrite core.
> This reduced the birdies on 40 meters from S5-S6 to very weak, barely
> discernible above the noise level, not moving the S-meter. It cleared up
> 80 as well.
>
> The ferrite I used was a Fair-Rite 2631814002. It is mix 31 and has a
> 3in inside diameter, 4in outside diameter.
>
> Steve, K8JQ
>
> On 4/25/2022 12:29 PM, Mike Fatchett wrote:
> > Whirlpool Cabrio Platinum washer
> >
> > I just noticed that our washer is producing broadband noise about
> > every 15kc. I pulses with the tub movement. I am seeing it on every
> > band. Even on my 80 vertical about 100 ft away.
> >
> > Has anyone else seen this and is there fix?
> >
> > W0MU
> >
> > _______________________________________________
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> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
>
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>
--
*Dave - WØLEV*
*Just Let Darwin Work*
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