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What year is your Simrad, do you know?
I am guessing that it’s a newer model that has some kind of .USR type that GPS Babel doesn’t recognize or can’t work with.
<insert cussing GPS manufacturers for making things harder than what they need to be>
This URL provides a lot of technical specs from GPS Babel that I don’t expect you to use, but maybe someone else who searches this in the future will: https://www.gpsbabel.org/htmldoc-development/fmt_lowranceusr.html
If you give me some time I can figure out a solution.
For now, I would investigate if your Simrad can export files in .gpx format instead of .usr.
NOTE: Everyone should shove their proprietary file format where the sun doesn’t shine and just use .GPX!!!
After that, try GPS Visualizer: https://www.gpsvisualizer.com/convert_input
Let us know how it goes.
Also, thank you for posting about this. I love this kind of content/discussion and hope more people do the same so we can solve these technical challenges. You don’t find this kind of discussion on FaceCrap!
