Linear F-K not recognizing data

[JohnSch]

Hi,

I'm attempting to use the active F-K toolbox to view a dispersion curve. I downloaded the example dataset from the Geopsy documentation and it works just fine. However, when I attempt to run the same process on my own dataset, the progrm doesn't seem to recognize the data (the wavefroms don't turn green, see attached image).

I don't see any issues with my pre-processing parameters. Any advice is greatly appreciated!

Thanks!

-John