ka3jjz
Wiki Admin Emeritus
The FSK stuff can be military - or Russian - in nature - hard to say. However, the WLO station out of Mobile is actually part of the Shipcom LLC, and I gave that website earlier in this thread...Mike
Unknown Data Signal on 6317.3 at 0530 UTC
- Thread starter mfn002
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Yeah, I know about WLO. I'm just curious about the rest of them.
D
DaveNF2G
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The chirping of SITOR/AMTOR is pretty distinctive, too.
I caught the 10430 STANAG signal over the weekend with a drifting center.
I caught the 10430 STANAG signal over the weekend with a drifting center.
ka3jjz
Wiki Admin Emeritus
If indeed these STANAGs are all military - a pretty safe assumption - they do indeed tend to show up all over the place, although for the most part they tend to avoid the HF amateur bands.;..it's hard to predict where they're going to show up next...
If you get serious into utilties, you need to belong to the UDXF Yahoo group which has lots of loggings of this type...
Mike
If you get serious into utilties, you need to belong to the UDXF Yahoo group which has lots of loggings of this type...
Mike
I did notice something interesting, though. I don't know if it is because of the reception I'm getting, but I seem to be finding the most of these data signals in the 6.3 and 10 MHz range.
Token
Member
It is just conditions, antenna, propagation, location, etc, as these same signals can be found from MW to the top end of HF. I typically do not find many above about 25000 kHz, but there are a few up there, the highest freq I have in my log books for STANAG 4481 FSK is around 32000 kHz.
However some kinds of data signals do fall within loosely defined frequency ranges. A good example is Link 11. This signal can be used at any frequency, but because of the way it is used (a tactical data link for surface units, generally all in the same region) it tend to be found below 14000 kHz, with the majority from 4000 to 10000 kHz.
T!
Token
Member
Another good resource is the #wunclub IRC channel on the Starchat server. This is a utility listening oriented chat room that allows real time data exchange between listeners. That way when you hear a signal you do not recognize you can throw it out into the chat and others that hear it can give feedback. from that you can get a rough idea of the region it is being heard in. And also there are a lot of well versed on the subject players there, they can probably tell you what you are hearing.
Like any chat room it runs in waves, there may be hours of time when no one says anything, and other times when the information flows quickly. Many of us stay connected to the room 24 hours a day, even when not near a radio or actually looking at the chat. I leave a computer connected all the time, that way I can see what signals were reported / active while I was away. Correspondingly, you can go in there and there might be 100+ names in there, but no one talking.
T!
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