Calibrating the Barometric Altimeter

You can manually calibrate the barometric altimeter if you know the correct elevation or the correct barometric pressure.

NOTE: The barometric altimeter is available only with GPSMAP 64sx/csx devices.

1. Go to a location where the elevation or barometric pressure is known.
2. Select PAGE > Elevation Plot > MENU > Calibrate Altimeter.
3. Follow the on-screen instructions.