Hello Bruce and Brad. I too have a Humminbird 997c SI and use it to collect SONAR data in Belize. I have successfully used the freeware HumViewer to view our collected files (.SON). We can, with HumViewer, see the GPS track, the cross section of the intensity and the rendering of the scrolling image. We can also export CSV with data necessary to apply the IDW raster interpolation in order to create an awesome sea floor surface. However, I want to also export a variable for each sonar point (2 million thus far) so that I can create another raster surface of the intensity. And I would like to drape the imagery over the sea floor surface as well. Thanks in advance for any reflections. Scott J. Scott Sires Geospatial Technology Program Professor & Coordinator Brookhaven College Ellison Miles Geotechnology Institute 3939 Valley View Lane Bldg. H, H-115 Farmers Branch, Texas, 75244 972-860-4362 ssires@dcccd.edu www.brookhavencollege.edu/emgi www.dcccd.edu/gis
... View more
