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Re: [RFI] Samsung Computer Monitor an RFI Dog

To: rfi@contesting.com
Subject: Re: [RFI] Samsung Computer Monitor an RFI Dog
From: N1BUG <paul@n1bug.com>
Date: Wed, 25 Sep 2013 06:57:12 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
There should have been just one "20" in there. :-)

I forgot to add: after turning on it will randomly change channel while I'm transmitting.

73,
Paul


On 09/25/2013 06:51 AM, N1BUG wrote:
My Vizio LCD TV will turn on if I transmit with 100 watts or more on
160 meters using the inverted V with one leg running about 20 20
feet above the house. Mine will turn off using the remote, however.
No problem when running 1500 watts to the vertical, but it is 220
feet from the house.

73,
Paul N1BUG


On 09/24/2013 10:20 PM, GARY HUBER wrote:
I have a similar problem (to the Samsung TV) with a JVC flat screen TV. It
will come on when I use a 160 sloper which runs close to the house at less
than 50W.  Neither the touch buttons nor the remote will turn the TV off
after its been turned on by 160 RFI, the only way to reset it is to remove
the AC power cord for a couple minutes then it will work with either the
touch buttons or remote.  Running 500W on 160 to a ground mounted vertical
some 50 feet from the house has no effect on the JVC TV nor does the full
legal limit to a tribander at 50 feet on a Rohn 45G mounted next to our two
story house.

73 ES DX,
Gary -- AB9M
-----Original Message-----
From: Jim Brown
Sent: Tuesday, September 24, 2013 7:24 PM
To: rfi@contesting.com
Subject: [RFI] Samsung Computer Monitor an RFI Dog

On 9/24/2013 2:37 PM, Mel Crichton wrote:
Just to reiterate my comments from 2 years ago... Samsung high-end
energy-efficient super-(audio) quiet refrigerator creates extremely strong
RFI every 5 KHz.....it's from the compressor, not the display...

A few months ago, I inherited a nearly new Samsung display from a fellow
ham, who told me that the touch-buttons that control monitor went nuts
when he keyed his rig. He lives on a small lot and runs legal limit,
mine are mostly much farther from the shack, so I fired it up in my
shack.  It mostly worked OK, for the reasons noted, but not when I load
up a 160M vertical about 25 ft away with 1.5 kW -- the monitor does,
indeed, go nuts and eventually shuts down, probably due to a
microprocessor crash.

73, Jim K9YC
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--
Paul Kelley, N1BUG
RFI Committee chair,
Piscataquis Amateur Radio Club
http://www.k1pq.org
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