Hmmm... This is a bit worrisome. We are replacing our current refrigerator with
a new Kemore Elite (aka LG) unit. We have an LG front loading washing machine
and dryer and both are RF quiet. Anyone know about LG?
Kim N5OP
"People that make music together cannot be enemies, at least as long as the
music lasts." -- Paul Hindemith
> On Dec 1, 2015, at 08:54, Mike Ryan <mryan001@tampabay.rr.com> wrote:
>
> Bill, The sort of problem that Mel described from the variable speed control,
> I had with a new A/C air handler that was installed her about 5 years ago in
> Palmetto. I ended up having to the replace the brand new fan motor with a
> single speed unit and all went fine after that. (Less energy efficient no
> doubt.)
> We bought what we think was a great G/E Profile series refrigerator two
> years ago..no noise whatsoever. Though a refrigerator (or any appliance) on
> sale may save you $$, the grief that you may get from it later certainly
> would not be worth the savings. I would buy one only with an agreement that
> if an rfi problem occurs within a given amount of time, that the unit could
> be returned or exchanged. -Mike, K4CVL
>
> -----Original Message----- From: john@kk9a.com
> Sent: Monday, November 30, 2015 4:49 PM
> To: rfi@contesting.com
> Subject: Re: [RFI] Samsung refrigerator
>
> Unplugging the refrigerator for a 48 hour contest would not make my XYL
> very happy and I would certainly miss the cold beer afterwards.
>
> John KK9A
>
>
> To: <rfi@contesting.com>
> Subject: [RFI] Samsung refrigerator
> From: "Mel Crichton" <kj9c@iquest.net>
> Date: Mon, 30 Nov 2015 20:44:46 -0000
>
> Not sure if it was my review or not, but our 2011 Samsung two door low
> energy refrigerator is horrible for RFI. When Samsung USA played dumb and
> said that they could do nothing about it, I voided the warranty and
> installed common mode and differential chokes INSIDE the casing. Did not
> help. I added more common mode choke on the power line outside with no
> effect.
>
> The culprit is not the compressor but the compressor speed control that
> creates variable frequency AC .... it's no doubt a square wave generator.
> Sniffing the case shows the most RFI coming from the front panel near the
> ice maker. When it runs, all HF bands have hash with shaprt spikes every 5
> KHz.
>
> a cheaper unit with a bit more compressor noise and only ONE speed would
> likely not have the variable speed feature..... and may be RF quiet
>
> We also have a Samsung LED TV that likes to turn itself on whenever I am
> on 80 meters.... not enough shielding (also tried common mode on this one)
>
> For this reason I will not buy Samsung, and find no problem with Sony
> electronics in the same area of the house.
>
> (In both units I unplug them when I am on the air. My wife hates it when I
> am in a 2 day contest.)
>
> Mel KJ9C
>
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