Hi Joe, 

It sounds to me as if the Cumulative spectrum plot that can be displayed 
underneath the waterfall is exactly what you have described. The Cumulative 
spectrum is the sum of all of the short-term spectra that make up the waterfall 
display. The sum is reset to zero at the beginning of each receive interval. 

Make sure that the “Cumulative” option is selected from the dropdown menu at 
the bottom of the waterfall window (just to the right of the color palette 
selection). You can make the Cumulative spectrum occupy a larger fraction of 
the window using the up-down arrows next to the box that is labeled “Spec NN%”, 
where NN will be percentage of the vertical window space that should be used 
for the Cumulative spectrum. 

Steve k9an

> On Feb 1, 2019, at 1:57 PM, jbozell <jboz...@utk.edu> wrote:
> 
> Hi folks,
>  
>  <>I’m reposting the gist of my previous question after getting some nice 
> suggestions that ultimately didn’t pan out (e. g., thanks to Mike W9MDB for 
> leading me to Sonic Visualizer…it was close, but not quite there, and 
> DL4YHF’s Spectrum Lab, which is powerful, but for PC only).
>  
> At some point during an FT8 decode, I’m assuming that there’s a number or 
> library of numbers is generated that is then translated into a visual 
> representation – the waterfall spectrum.
>  
> Is it possible to tap into the software and download those numbers into Excel 
> or similar? It would be interesting, for example, to integrate the value of 
> each 15 second x 50 Hz block that makes up the waterfall grid.
>  
> Is this possible ? Has someone already done it? Incompatible with the way 
> WSJT-X works?
>  
> Thanks,
>  
> Joe/WB0CDY
>  
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