[Spooks] S28 / 4.625 / UVB-76?

[Kevin Elliott]

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