[Spooks] S28 / 4.625 / UVB-76?

[Fabien LOCHE]

4622,5kHz is 10 to 20dB stronger than 4625kHz UVB-76 sig here in NE France / WWL JN29
JRC NRD545 + 10m LW
no idea of what it is, strong carrier...
Fabien 

Le 29 sept. 2010 à 21:46, Kevin Elliott a écrit :

> 
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> Hey folks,
> 
> I know there's been a lot of activity on 4.625 over the last couple of weeks
> since UVB-76 went down (possibly for maintenance). I have been watching it
> closely (via the justin.tv and audio streams) for the last couple of days
> and find a few things interesting.
> 
>  * When it is very late in the USA, I notice that activity nearly
> disappears (around 2AM PST / 5AM EST). No morse has been noticeable during
> this period, and the waterfall shows a light carrier signal that seems to
> very slowly sweep over an hour.
>  * When it is daytime in the USA, it's flourishing with activity. For
> example, right now there is a loud and strong whine, combined with morse and
> what sounds like some kind of packet signal. The waterfall shows activity
> across the 1kHz spread, that reminds me of PSK activity (although it doesn't
> sound like it). What is most interesting to watch and listen to is a
> "swooshing" that seems to occupy about 1kHz (right of the strong whine at
> 4622.5kHz). I have only heard and seen this once or twice. When the swoosh
> (sounds like mild ocean waves or really mild white noise) kicks in, the
> intensity/color of the strong wine at 4622.5kHz decreases to compensate for
> the increase signal across the 1kHz spread. Is this some kind of data
> transfer? When you see it visually, it seems like it must be, but it's
> innocent only by sound as the "waves" sound too peaceful to be data.
>  * A pulsing packet is heard in 0.4kHz left of the strong whine at
> 4622.5kHz, but only infrequently, and lasts for about 10 seconds. Any ideas
> what encoding this might be?
> 
> Is anyone aware of any software that can decode multiple signals at once
> from an audio stream? It would be nice to select chunks of the band and
> assign protocols to decode. I'd prefer OSX, but would settle for
> Windows/Linux.
> 
> Any places to chat about this phenomena in real time online?
> 
> -Kevin
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