[RFI] Further data on my weird RFI problem

[N4ZR]

Hi Scott - I should have mentioned that.  As far as I can tell, each of 
the frequencies is very stable.  When I finally find it, this is going 
to be a weird one!

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.

On 5/6/2021 5:24 PM, K9MA wrote:
> 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