This format can...
This format has the following options: erase .
Serial download protocol for the Wintec WBT-200™ and Wintec WBT-201™ Wintec WBT-1000™ GPS data loggers. Although untested it is expected that this will also support the WBT-100.
Example 3.48. Command showing WBT-200 download and erase over Bluetooth on Mac OS X
gpsbabel -t -w -i wbt,erase -f /dev/cu.WBT200-SPPslave-1 -o gpx -F out.gpx
Internally, this is actually a serial device that has a serial/USB adapter built into it. It uses the CP210x chip by Silicon labs. You will probably need a driver for this chip. The product ships with one for Windows. The Linux 210x driver seems to work fine. Mac users will need to download the Mac driver for CP210x.
GPSBabel does not try to offer an interface to configure these units. That is left to the Windows software that comes with it or tools like the WBT 201 Viewer for Mac OS/X and Linux.