[Elecraft] P3 waterfall legend?

[Gary Smith]

Is there a resource on the internet where you can look at different 
screenshots and see what the source is for some of the signals that 
are translated by the waterfall? I see so many different geometric 
forms based on the nature of the Rf and they are a mystery to me.  CW 
is pretty easy to detect, same with RTTY. Some of the other digital 
signals have their own appearance you see often. There are some 
signals I have heard before but now to see them portrayed on a screen 
as in a waterfall, they are surprising to me and I'd like to know 
what they are. 

For instance; I was on 10.1 MHz and there's that constant commercial 
RTTY station around 10.101 but next to it around 10.112 is another 
much larger signal and it takes a lot of bandwidth. At first I 
thought it was some new digital mode I haven't yet seen but it is 
continuous so it must be commercial. It looks to be a series of 
curled sections spiralling with each other. I've heard this signal 
before but just now with the P3 with its SVGA larger output, am able 
to see it.
 
http://doctorgary.net/p3screen.jpg

I'd like to be able to identify what kinds of signals make the QRM 
that we hear but can now see with the waterfall display.

73,

Gary
KA1J

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