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signal at 8.693 mHz
Posted: Wed Feb 14, 2018 11:02 pm
by N1EYZ
Anyone have any idea what this is? It is relatively strong and on pretty much all the time. Web searches are not really helpful. Some sort of FSK, photo below. I have not had luck decoding it with some of the standard digital software, but that may be because I'm still a little clumsy with them.
Any hints, thoughts, etc. appreciated.
73,
N1EYZ (Roger)
Re: signal at 8.693 mHz
Posted: Thu Feb 15, 2018 3:35 am
by Mike2459
I ran a speed measurement on this signal around 01:30Z. It appeared to be 100 baud. And of course the shift was 850hz. Shortly thereafter it went down. It probably shifted to a night freq.
In my experience most, but not all, of the non-ham FSK nowadays is encrypted.
Good luck.
Re: signal at 8.693 mHz
Posted: Thu Feb 15, 2018 4:04 am
by N1EYZ
thanks! I'll dig into it a bit more . . .
Re: signal at 8.693 mHz
Posted: Thu Feb 15, 2018 6:06 am
by Mike2459
You might be interested in this blog: diario SWL I5-56578 Antonio
http://i56578-swl.blogspot.com/
A lot of loggings and posts on all kinds of digital stuff, primarily in Europe.
Re: signal at 8.693 mHz
Posted: Sun Feb 18, 2018 12:23 am
by NoelC
I've long wondered about that one as well, and have never been able to get any readable data from it in any mode I've tried.
-Noel