Calibrating the Barometric Altimeter
Your device was already calibrated at the factory, and the device uses automatic calibration at your GPS starting point by default. You can manually calibrate the barometric altimeter if you know the correct elevation.
- Hold MENU.
- Select .
Select an option:
To calibrate automatically from your GPS starting point, select Auto Cal., and select an option.
To enter the current elevation, select Calibrate.