[RFI] Samsung Computer Monitor an RFI Dog

N1BUG paul at n1bug.com
Wed Sep 25 06:57:12 EDT 2013

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.


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 at 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

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