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Re: [RFI] New Interference at kk0sd

To: ROLAN CLARK <rolan.clark@comcast.net>, "rfi@contesting.com" <rfi@contesting.com>
Subject: Re: [RFI] New Interference at kk0sd
From: Gary <gary_mayfield@hotmail.com>
Date: Sun, 21 Mar 2021 23:10:25 +0000
List-post: <mailto:rfi@contesting.com>
The facility to my east is a firestation, and then the airport. I have not 
checked the firestation very closely, but will do so as several folks have 
suggested.

I have walked most of the neighborhood with my portable shortwave receiver and 
loop antenna. They worked very well for me last time, but I have been unable to 
hear the noise with my portable shortwave set this time.

I will try to get out for an audio check if the wind ever dies down.

Thanks for the suggestions and keep them coming!

73,
Gary "Joe" kk0sd

-----Original Message-----
From: ROLAN CLARK <rolan.clark@comcast.net> 
Sent: Sunday, March 21, 2021 2:23 PM
To: Gary <gary_mayfield@hotmail.com>; rfi@contesting.com
Subject: Re: [RFI] New Interference at kk0sd

Joe, 
I looked at ur qth on google earth es possibly something from the 'warehouse'  
east of you?
Sounds like 'sparking, arcing' wonder if power xfrm arcing internal so maybe 
harmonics of 'arc' not getting out on lower bands ?
Wonder if  walk on a quiet  eve  would yeild any 'buzzing' , 'arcing' sounds. 
Take care,
73  de rolan  wa3pbc


> On 03/21/2021 2:01 PM Gary <gary_mayfield@hotmail.com> wrote:
> 
>  
> My last problem was tracked down to a neon sign in a neighbors garage. I had 
> several months of blissful relatively low noise operation, but now have a new 
> RFI issue.
> 
> You can see a recording of it here:
> https://www.youtube.com/watch?v=GKf4P44FXMo
> 
> I have turned all of the breakers in my home off and run the radio from a 
> battery and the noise remains.
> 
> My neighborhood utilities are all underground.
> 
> There are no solar installations in my neighborhood, and the noise is there 
> at night anyway...
> 
> The noise is not detectable on the AM broadcast band, but starts around 2 MHz 
> and runs to at least 6 meters.
> 
> It is there 7 days a week 24 hours a day.
> 
> It is not detectable from my pickup when I drive the streets of my 
> neighborhood (checking both AM broadcast and Shortwave).
> 
> If any one has heard something like this, I would love to hear what you found.
> 
> Thank You for your input and help!
> 
> 73,
> Gary "Joe",  kk0sd
> 
> 
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