[RFI] ARRL to FCC...

Wed Mar 26 15:12:32 EDT 2014

And if you do all this, we want a link to a video showing the event!  ;-)

-----Original Message-----
From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of David Robbins

how much time and effort have you already spent on this?  how much more is it going to cost to get your antique noise hunting stuff working?  you can buy a brand new 40" LED TV for under $400, why not just tell them you'll trade a brand new one complete with internet access and all sorts of features for their antique noisemaker and then run over it with your car!

Mar 26, 2014 02:44:44 PM, dj2001x at comcast.net wrote:

Tom,

I'd love to do a lot of stuff with their tv, but it's not my house and I hate to impose on them. I have to catch the neighbor outside on a weekend and chat with him a little and maybe something might get going. As you can see I'm a little squeamish about imposing on other people's home and property. I guess I wouldn't like it much and therein lies my problem, hi. But I'll work on it. Maybe by the time I finally can do some real investigation the TV will die.

Dale, k9vuj

On 26, Mar 2014, at 13:18, Tom Thompson wrote:

> Dale,
> 
> I checked with Costco and they only carry LED back lit TV sets now. In thinking about it further, I don't think making a measurement on the power cord with an RF current probe would be too definitive anyway because of the RFI coming from the other sets connected on the same circuit. It would be instructive if you could conduct some tests on your neighbor's set. Would it be possible to use a battery and quiet inverter to power the set with all other wires disconnected? You might have to connect the cable to get the screen to light. If you could do that and it eliminated the RFI then the line filters Ed suggested might work for you.
> 
> Just some thoughts.
> 
> Tom W0IVJ
> 
> On 3/26/2014 2:23 AM, Dale J. wrote:
>> My next door plasma is broadband hash with various bumps along the way. I have one of those bumps especially bad at 3.857, it's 20 db over 9 and sounds like a motor running but changing speed and sometimes stopping and starting. The broadband hash is all over the 80 meter band and 40 too. The upper bands are less affected. I suspect part of the noise is from a switching power supply in the plasma tv, that might be what that motor sounding noise is not sure though. I wish it were my TV, I could then find out more how these things tick before permanently disabling it. Makes it difficult on my USAF MARS net too.
>> 
>> Dale, k9vuj
>> 
>> 
>> 
>> On 25, Mar 2014, at 21:16, David Cole wrote:
>> 
>>> Imagine thousands of little lightening bolts... Thats Plasma TV.
>>> -- 
>>> Thanks and 73's,
>>> For equipment, and software setups and reviews see:
>>> www.nk7z.net
>>> for MixW support see;
>>> http://groups.yahoo.com/neo/groups/mixw/info
>>> for Dopplergram information see:
>>> http://groups.yahoo.com/neo/groups/dopplergram/info
>>> for MM-SSTV see:
>>> http://groups.yahoo.com/neo/groups/MM-SSTV/info
>>> 
>>> 
>>> On Tue, 2014-03-25 at 18:28 -0600, Tom Thompson wrote:
>>>> Ed,
>>>> 
>>>> I checked out a few plasma tv sets a couple of years ago with a portable
>>>> shortwave receiver. The RFI was coming right out of the front of the
>>>> set which made sense since that was where the discharge was occurring.
>>>> 
>>>> Tom W0IVJ
>>>> 
>>>> On 3/25/2014 12:31 PM, Hare, Ed W1RFI wrote:
>>>> 
>>>>> Thanks, Dale.
>>>>> 
>>>>> We can then see if the TV is still in production. If it is no longer manufacturered, it may be a harmful interference complaint, not a possible emissions-limit violation.
>>>>> 
>>>>> The ARRL Lab would also be willing to provide a few filters to try, if your neighbor is willing to work with you. Some have speculated that the noise comes directly from the TV, and this could be true, but I still tend to think in terms of noise coming out the AC mains and possibly also being radiated by the shield of the incoming coaxial feed line.
>>>>> 
>>>>> -----Original Message-----
>>>>> From: Dale J. [mailto:dj2001x at comcast.net]
>>>>> Sent: Tuesday, March 25, 2014 2:29 PM
>>>>> To: Hare, Ed W1RFI
>>>>> Cc: rfi at contesting.com
>>>>> Subject: Re: [RFI] ARRL to FCC...
>>>>> 
>>>>> Ed
>>>>> 
>>>>> I'll see if I can get that information from my neighbor, but it will take a while. I have to actually get in the house and look at the back of the TV and get the model number because I don't think they know for sure. As soon as I get it I'll send you a email.
>>>>> 
>>>>> Tnx
>>>>> 73
>>>>> Dale, K9VUJ
>>>>> 
>>>>> 
>>>>> On 25, Mar 2014, at 13:04, "Hare, Ed W1RFI" wrote:
>>>>> 
>>>>>> If the ARRL Lab can get some reports involving specific model numbers, we can do some testing and find out where these plasma sets stand. I had a report in MD that involved two Samsung plasma TVs. One made very loud radiated noise, while the 2nd model, also a plasma TV, was quiet.
>>>>>> 
>>>>>> I need reports that involve a plasma TV operating in a neighbor's home causing harmful interference. So far, most of the reports have been about the QRZ.com and RFI list discussions, not a specific report.
>>>>>> 
>>>>>> The ARRL Lab can measure conducted noise and radiated noise from devices, but we really need to start with actual, non-general reports.
>>>>>> 
>>>>>> Ed Hare, W1RFI
>>>>>> ARRL Lab
>>>>>> 
>>>>>> -----Original Message-----
>>>>>> From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of KD7JYK DM09
>>>>>> Sent: Friday, March 21, 2014 12:23 AM
>>>>>> To: rfi at contesting.com
>>>>>> Subject: Re: [RFI] ARRL to FCC...
>>>>>> 
>>>>>> : Now if they would recall all the damn plasma TV's out there doing the same
>>>>>> : thing it would really tickle my butt cheeks...but, any such action is
>>>>>> : goodness!
>>>>>> 
>>>>>> How mant times have you contacted the FCC regarding the interference to your licensed service?
>>>>>> 
>>>>>> Kurt
>>>>>> 
>>>>>> _______________________________________________
>>>>>> RFI mailing list
>>>>>> RFI at contesting.com
>>>>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>>>> _______________________________________________
>>>>>> RFI mailing list
>>>>>> RFI at contesting.com
>>>>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>>> _______________________________________________
>>>>> RFI mailing list
>>>>> RFI at contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>>> 
>>>> _______________________________________________
>>>> RFI mailing list
>>>> RFI at contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/rfi
>>> _______________________________________________
>>> RFI mailing list
>>> RFI at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rfi
>> _______________________________________________
>> RFI mailing list
>> RFI at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>> 
> 

_______________________________________________
RFI mailing list
RFI at contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI at contesting.com
http://lists.contesting.com/mailman/listinfo/rfi

----------------------------------------------------------------------
This e-mail contains Omaha Public Power District's confidential and proprietary information and is for use only by the intended recipient.  Unless explicitly stated otherwise, this e-mail is not a contract offer, amendment, or acceptance.  If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.