[Elecraft] OT P3 video of RFI, ideas?

Fri Jul 5 13:22:20 EDT 2013

The plasmas were not really 'outlawed' - but California made sales there a problem because they are rather inefficient users of electrical power.  (As in close to a KW to create a picture on early models.) - That said, their picture is usually vastly superior to the LCD sets, even those with LED backlights.

KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them!

________________________________
 From: Matt Zilmer <mzilmer at verizon.net>
To: Jim Bennett <w6jhb at mac.com> 
Cc: Elecraft Reflector <Elecraft at mailman.qth.net> 
Sent: Friday, July 5, 2013 12:54 PM
Subject: Re: [Elecraft] OT P3 video of RFI, ideas?

I thought plasma TVs were outlawed some time ago.  Obviously there are
still plenty of them around.  I see occasional interferers but at a
lower amplitude - must be neighbors' TVs.

73,
matt W6NIA

On Fri, 05 Jul 2013 09:41:57 -0700, you wrote:

>Bill, 
>
>We have a &*^%$$ Samsung 63" plasma TV in the family room. When it is turned on, that's exactly what it looks like on my P3. When I'm on the air and someone turns on that piece of crap, I know in an instant. 
>
>Jim / W6JHB
>
>
>On   Friday, Jul 5, 2013, at  Friday, 9:29 AM, Bill Hammond wrote:
>
>> This is a bit off topic but perhaps other P3 users on this reflector have encountered this RFI and have some idea where it comes from and perhaps a remedy?  There must be a couple of thousand P3 users on this reflector.
>> The below is a recording and includes sound of this nasty bit of pulsating RF. 
>> 
>> Video recording: 
>> 
>> http://www.flickr.com/photos/ak5x/9214448105/
>> 
>> It is not always there.  When it is there in the 20-meter band there are siblings almost as strong at the following frequencies:
>> 
>> 13.975
>> 
>> 14.032-the recording
>> 
>> 14.126
>> 
>> 14.220
>> 
>> 14.282
>> 
>> 14.469
>> 
>> In addition, there are less strong signals that follow the pulsation; one is visible on the recording at 14000 (far left on the P3). They are also in the 17 meter band. They are not in the 15 meter band or above.
>> 
>> I have pulled the big switch and it is still there on battery power.  My suspension is a neighbor with plasma television.  Is this what plasma TV looks like?  It is directional in nature and the strongest signal comes from a 40-degree heading, roughly Europe from my location, or to a cluster of homes to my northeast. 
>> 
>> 73, Bill AK5X
>> 
>> Bill Hammond
>> wham727 at aol.com
>> Bill Hammond-AK5X
>> ak5x at mac.com
>> ak5x at sbcglobal.net
>> K3 #69
>> P3 #817
>> KPA500 # 149
>> K2/100 #4637
>> K1 #2033
>> KX1 #1023
>> KX3 #583
>> W2
>> T1
>> 
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