[Lowfer] curious signal

Tue, 5 Aug 2003 17:58:21 -0700

I watched it quite a bit over the last week. It is on 640Kc +8.4Hz (8.4cps?)
It is 50KW 1A so almost anyone should be able to see it.
The only other similar signal was on 940 from Fresno, CA I think. But that
was closer to a sine wave.
It appears to have some modulation on it mostly on the inner edge of the low
freq. side if that makes any sense. I have seen other stations with weak
tones of 5 to 30 Hz more or less that I guess are telemetering but this
doesn't seem to be that. I assume it is 8.4 Hz high to get it away from
co-channel carriers and that wouldn't be necessary for local purposes. I let
it run for a while at 120 seconds on ARGO and what looks like modulation
shows nicely. Modulation looks analog to me.

Dale Rice
DER

>
> That is definitely a weird looking signal. Did you stretch it out and see
> what the modulating signal is??? It looks like some kind of composite
> signal. Maybe Bill or another one of those engineers can shed some light
on
> it. What is the carrier freq???
>
> Mike>WE0H
> http://www.we0h.us/lf
> "WEOH" on 185.3026kc
> QRSS 15 & -.-.  .--
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Dale Rice
> Sent: Tuesday, August 05, 2003 4:51 PM
> To: [email protected]
> Subject: [Lowfer] curious signal
>
> Let me see if I can get it right this time.
> I think I put the jpg in the right place.
> Flame away if not legible.
>
> This may be a bit off topic but these were seen with ARGO so maybe that
> makes it OK.
> These signals appear to be from KFI in Los Angeles.
> Their carrier is 8.4 Hz high and doing strange things.
> Does anybody know what is going on here? I would assume they are trying to
> send this signal to someone a long ways off, but what and who?
>
> http://www.orecal.com/argo/kfi1.jpg
> http://www.orecal.com/argo/kfi2.jpg
>
> Dale Rice
> Williams, Oregon
>
>
>
>
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