Realtime tracking

Introduced in GPSBabel 1.3.1, we now have an experimental feature for realtime tracking via the new -T option. This reads position reports from selected formats and writes an output file when a position report is received.

As of this writing, Garmin's PVT protocol and NMEA are supported inputs. KML, NMEA, and the variou XCSV formats are supported on output. Additional formats may be added by interested parties later.

gpsbabel -T -i garmin -f usb: -o kml -F xxx.kml

Will read the USB-connected Garmin and rewrite 'xxx.kml' atomically, suitable for a self-refreshing network link in Google Earth.