[RFI] Further data on my weird RFI problem

[K9MA]

Hi Pete,

Is the frequency stable, or does it drift around?

73,
Scott K9MA 

----------

Scott Ellington

 --- via iPad

> On May 6, 2021, at 9:11 AM, N4ZR <n4zr at comcast.net> wrote:
> 
> While I wait for the preamp needed to use my WD8DSB portable flag to pin it down, I thought RFI readers might be interested in some more data.
> 
> The signal is present every 50 KHz from approximately 5000 KHz to about 7800 KHz, strongest at around 6450 KHz.  On each of these frequencies it consists of a relatively strong central signal and multiple symmetrical "sidebands" spaced 60 Hz apart.  At the strongest frequency, it is clear that the every-120-Hz sidebands are stronger than those at 60-Hz intervals, and that their strength tapers fairly rapidly as you tune further from the center
> 
> The other thing I have discovered is that it is quite local.  No DF capability yet on HF, but If I go a mile or so away from my QTH, it is not audible on a decent portable SW receiver.  Tried yesterday to quasi-DF it, walking the neighborhood using signal strength, but with inconclusive results. It begins every morning at 0900:02 local time, and continues well after sunset, both of which tend to suggest it is on some sort of timer.
> 
> Do these rather unusual characteristics suggest what kind of an emitter I might be looking for, or must I just wait for the DF hardware?
> 
> -- 
> 73, Pete N4ZR
> Check out the new Reverse Beacon Network
> web server at <http://beta.reversebeacon.net>.
> For spots, please use your favorite
> "retail" DX cluster.
> 
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi