[AMSAT-BB] Re: Dishwasher RFI on 2 meters

22 May 2021

      I like the Tripp-Lite ISOBLOK2-0, $32 at Amazon. I have opened it up, and
the 8 and 10 outlet versions, and verified that there is a real RF filter
in there.
Thanks
Bruce
On Sat, May 22, 2021, 4:02 PM Gary gary_mayfield@hotmail.com wrote:
...
Dishwashers, and most ‘appliances’ are exempt from Part 15. You can see a
list here:
https://www.compliancegate.com/fcc-part-15-product-list/
There has been a great deal of discussion on the RFI email reflector about
this fact. Some manufacturers are known to be quite helpful. Some other
manufacturers are very quick to say – we are exempt leave us alone…
Ed Hare and the ARRL are very responsive, and have good relationships with
many of the manufacturers.
rfi@contesting.com is another good resource.
http://lists.contesting.com/mailman/listinfo/rfi
73,
Joe kk0sd
*From:* gfhopper@gmail.com gfhopper@gmail.com *On Behalf Of *Grant
Hopper
*Sent:* Saturday, May 22, 2021 3:02 PM
*To:* John Geiger af5cc2@gmail.com
*Cc:* AMSAT amsat-bb@amsat.org
*Subject:* [AMSAT-BB] Re: Dishwasher RFI on 2 meters
One avenue of attack would be to contact the manufacturer.  It's an
electrical device.  It should have been subject to part 15 certification.
The RFI would seem to be an indicator that it's not compliant.  The ARRL
can probably provide some assistance as well.  I know they have been
helpful with the issue of RFI from grow lights here in Washington.
73,
Grant
KB7WSD
On Sat, May 22, 2021 at 12:25 PM John Geiger af5cc2@gmail.com wrote:
I have been having some noise on 2 meters, making it harder to hear the
satellites in certain directions, and I have finally traced it down to the
new dishwasher we bought a few months ago. It is a Frigidaire Galley Model
number FGID2468UF1A (in case you want to avoid this model).
I tried wrapping the power cord, which is a flat, about an inch wide 3
pronged AC cord through a rectangle torrid I have on hand that would split
in half for easier access.  I could fit 2 turns of the cord through it.
That didn't make a difference.  I have a larger ring torrid but the plug on
the cord is a little too large to fit through it.  I am sure I could get a
larger diameter torrid if I thought it would work.
So, what is the best plan of attack on the RFI-other than just unplugging
the dishwasher when I am not using it.  I can probably only get 2 or 3
turns max through a ring torrid due to the length of the cord.  Is this the
best solution for RFI, or what other methods can I try?
73 John AF5CC

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[AMSAT-BB] Re: Dishwasher RFI on 2 meters

Bruce Perens