[RFI] 160m Noise - Revisited

[Paul Plants]

Try timing on and off cycles. See if is same or near same time. 

I also have a noise on 20 meters appears to be centered 14.300 MHz. But runs up and down the band all day long. This only started after a power outage that was across the street neighbor has a small barn over the hill that power was restored. I have driven the neighborhood within 2 mile radius can't fine noise.

Paul
W3PLP
Sent from my iPad Air 2

> On Sep 14, 2017, at 7:52 PM, Larry Burke <wi5a at sbcglobal.net> wrote:
> 
> Back in May of this year I posted a video of a couple of noises that were
> causing significant problems for me on 160m. One of those noises long ago
> disappeared, leaving the remaining noise out in the open and more visible on
> the spectrum scope. I've posted a new and improved video of the current
> situation at https://www.youtube.com/watch?v=LpmYHOxVYiA
> <https://www.youtube.com/watch?v=LpmYHOxVYiA&feature=youtu.be>
> &feature=youtu.be 
> 
> 
> 
> At the recommendation of KB4T I purchased a National RF Model HFDF Vector
> Gun kit. I use it mobile in conjunction with an Elecraft K3. It works very
> well and seems to be indicating a source about 750 feet north of me -- I
> think I have narrowed it down to one or two houses. Before I go knocking on
> doors I'd like some input on possible emission sources. 
> 
> 
> 
> The noise is:
> 
> - Frequency stable. If it's "on" it's always on the same frequencies with no
> drift
> 
> - Appears about every 8 kHz from about the top end of the BC band to around
> 2 MHz
> 
> - Disappears from time-to-time but is on significantly more than it is off.
> No apparent rhyme or reason for when it's on or off
> 
> 
> 
> Thoughts? 
> 
> 
> 
> - Larry K5RK
> 
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> Back in May of this year I posted a video of a couple of noises that were
> causing significant problems for me on 160m. One of those noises long ago
> disappeared, leaving the remaining noise out in the open and more visible on
> the spectrum scope. I've posted a new and improved video of the current
> situation at https://www.youtube.com/watch?v=LpmYHOxVYiA
> <https://www.youtube.com/watch?v=LpmYHOxVYiA&feature=youtu.be>
> &feature=youtu.be 
> 
> 
> 
> At the recommendation of KB4T I purchased a National RF Model HFDF Vector
> Gun kit. I use it mobile in conjunction with an Elecraft K3. It works very
> well and seems to be indicating a source about 750 feet north of me -- I
> think I have narrowed it down to one or two houses. Before I go knocking on
> doors I'd like some input on possible emission sources. 
> 
> 
> 
> The noise is:
> 
> - Frequency stable. If it's "on" it's always on the same frequencies with no
> drift
> 
> - Appears about every 8 kHz from about the top end of the BC band to around
> 2 MHz
> 
> - Disappears from time-to-time but is on significantly more than it is off.
> No apparent rhyme or reason for when it's on or off
> 
> 
> 
> Thoughts? 
> 
> 
> 
> - Larry K5RK
> 
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi