Re: Blank waterfall


May I ask for clarification on how to get it working?  
I have the latest version (at least as of earlier this week) of N1MMLogger+ installed with a Yaesu 991A connected.  The frequency in the lower right corner tracks correctly, but the spectrum display is blank (see screenshot).  Granted that I am kinda a newbie to this program, but I can't figure out why I don't see anything.
Spectrum Source:  Other radios
Associated Radio:  Radio1 (my FT-991A)

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