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@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@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|