[RFI] Noise centered around 20 meters

[AA5CT]

 Gary,

How long has the noise been affecting you? A week, several weeks, or a month?

My noise source on 160 and 80 meters originating from a residence with 
buried utilities in the alley ceased a month or so back, and had been 
going for 4 months or so. I lucked out. Didn't have to make a cold call.

The opening line I've used when contacting neighbors is: "Have you had
any radio or TV interference lately?"

That line paid off with a neighbor down the block and on the other
street (we share the same alley w/buried utilities) and turns out he 
did have some occasional interference to his TV at the time. It 
turned out to the the cheap switching power supply charger
for his kids minibike battery. He was going to unplug it when
it was not used so I was satisfied on the one. YMMV.

73 and good luck.

de AA5CT Jim

.
.


     On Saturday, May 23, 2020, 05:18:04 PM CDT, Gary <gary_mayfield at hotmail.com> wrote:  
 
 I was able to borrow a portable shortwave radio today, and we clearly determined the noise is from about a block over. I will build a loop for the radio tonight and take another whack at it tomorrow. 

Anyone have any suggestions for approaching a neighbor you have not met (if it's in a house) in this era of social distancing?

Thanks and 73,
Gary "Joe" kk0sd

-----Original Message-----
From: WW3S <ww3s at zoominternet.net> 
Sent: Saturday, May 23, 2020 11:57 AM
To: Gary <gary_mayfield at hotmail.com>
Cc: rfi at contesting.com
Subject: Re: [RFI] Noise centered around 20 meters

What type of internet service do you have, DSL? Does your modem have battery backup? I chased my tail with my cable modem, it has battery backup since I also have voip from them as well....switching off breakers makes little difference with battery backup devices....

Sent from my iPad

> On May 23, 2020, at 12:50 PM, Gary <gary_mayfield at hotmail.com> wrote:
> 
> I was asked to do a video of the noise with no talking. You can see it here:
> https://youtu.be/I_AeXh5IGYg
> 
> The noise sounds the same across the band where I can hear it 11 - 15.6 MHz. It is the strongest around 13.5 MHz. There are no carriers that I can associate with the noise.
> 
> I hope this helps.
> 
> 73, and Thanks Again,
> Gary "Joe" kk0sd
> 
> 
> -----Original Message-----
> From: RFI <rfi-bounces+gary_mayfield=hotmail.com at contesting.com> On Behalf Of Gary
> Sent: Saturday, May 23, 2020 8:46 AM
> To: rfi at contesting.com
> Subject: [RFI] Noise centered around 20 meters
> 
> Hey folks,
> 
>                I don't work a lot of 20 meters, but was thinking I might use it during Field Day for a 1E operation. I have some 'noise' that starts around 11 MHz and gets stronger as I tune up the band. It is about S8-S9 across all of 20 meters and finally plays out around 15.600 MHz. I made a video showing the issue and placed it on Youtube here:
> https://youtu.be/HD3sH-YjdyE
> 
>                I have preformed tests turning the breakers off to my home one at a time as well as turning the master breaker off and running the radio from a battery. The noise is unchanged by this. The noise is there 24 hours a day 7 days a week.
> 
>                The antenna is a simple ground mounted vertical in my backyard.
> 
>                Any and all help and suggestions are appreciated.
> 
> Thanks and 73,
> Gary "Joe" kk0sd
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