[Lowfer] curious signal

Wed, 06 Aug 2003 08:23:02 -0700

paulc wrote:
> 
> Dale,
> 
> Looks like about 6 minutes between 1 HZ frequency shifts  .
> Maybe some kind of timing signal?  That seems odd
> 
> Did you look at any other stations to see if there are similar freq moves?
> 
> Was it always symmetrical wave form? How long did you watch it for?
> 
> May some of the AM broadcast engineers will weigh in on the topic.
> 
> OR....   it could be a wayward LF'er who is sending data bits by FSK'ing the
> carrier of KFI
> and as long he doesn't wander outside of FCC tolerance He's go a hell of a
> signal
> 
> Who knows!!!!
> 
> PaulC
> W1VLF
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Dale Rice
> Sent: Tuesday, August 05, 2003 5:51 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

	Many (~40) years ago a San Francisco BC station send signals by slow
FSK, and I think one of the local LA stations (KFI?) did too.  Can't
remember any more details but someone in our RTTY Society picked up on
it and put out the word.  So, might be something deliberate??

Ed