Sony does not produce or sell Plasma TV's....
W6RD
----- Original Message -----
From: "Duane Calvin" <ac5aa1@gmail.com>
To: <k.nesbitt@shaw.ca>; "'Discussion of Ten-Tec Equipment'"
<tentec@contesting.com>
Sent: Tuesday, November 20, 2007 7:01 PM
Subject: Re: [TenTec] OT: RFI from Plasma TV?
> Is your Sony a plasma or an LED?
>
> 73, Duane
>
> Duane Calvin, AC5AA
> Austin, Texas
> www.ac5aa.com
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Kirb Nesbitt
> Sent: Tuesday, November 20, 2007 3:37 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] OT: RFI from Plasma TV?
>
> Rick,
> you may have got mine! I had purchased a similar model from Panasonic
> and tried everything to reduce the hf noise it produced. With the help
> of my neighbor we packed it up and hauled it back to Costco for a
> refund. Ended up picking up a Sony a few days later thats been 100%
> quiet. I had wondered if perhaps I'd just hit upon a particular
> model/year that was poorly designed. Apparently not.
> Good Luck!
>
> Kirb - VE6IV
> --
>
> Rick Williams wrote:
>> Bernie I own a Panasonic 50 inch plasma and the short
>> answer is yes. Just yesterday I received the message
>> below from Panasonic (Canada). I have already
>> installed a large toroid on the power cord (the stock
>> cord IS shielded with a built it toroid and my added
>> toroid with 8-turns of the power cord seemed to do
>> nothing), an excellent surge protector (that seemed to
>> make things worse), put the TV on another circuit and
>> the rest of course is chaff thrown up by the
>> manufacturer (the GND system meets current codes and
>> the plug is wired correctly). The change of circuit
>> DID help somewhat. The noise introduced by the TV on
>> certain frequencies on the 80 metre band is
>> approximately 2 S-units (i.e. significant) and similar
>> on selected frequencies on 20 and other bands. So
>> it's all over the place on all the bands I work with
>> all the antennas I use.
>>
>> I put every split choke I own on the power line along
>> with the large wound torroid with no change.
>>
>> The TV has a built-in EMI filter at the plug (I can
>> see it through the vent holes) so placing an
>> additional Corcom filter in series seemed to make
>> things worse. Finally, I have a large isolation
>> transformer, currently serving as a doorstop in the
>> shack, that will be installed later to see if it
>> helps.
>>
>>>From the Panasonic note they seem convinced that the
>> power cord is radiating. My fear is that the plasma
>> design itself is the source of the interference and
>> that will be significantly more difficult, if not
>> impossible, to resolve.
>>
>> 73,
>>
>> Rick
>> VE7TK
>>
>> Website: http://www3.telus.net/ve7tk
>>
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