This format can...
File protocol for the Wintec WBT-200™ and Wintec WBT-201™ (sometimes called the G-Rays 2™)GPS data loggers. This format reads the binary file format created by Wintec's Windows application.
Example 3.47. Command showing conversion of a Wintec binary file to GPX
gpsbabel -i wbt-bin -f tracks.bin -o
gpx -F out.gpx