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.

  1. Hold MENU.
  2. Select Sensors & Accessories > Altimeter.
  3. Select an option:
    • To calibrate automatically from your GPS starting point, select Auto Cal., and select an option.

    • To enter the current elevation manually, select Calibrate > Yes.

    • To enter the current elevation from the digital elevation model, select Calibrate > Use DEM.

    • To enter the current elevation from your GPS starting point, select Calibrate > Use GPS.

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