Garmin GPSMAP 76CSx User Manual

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The Altimeter Setup Page allows you to setup the 

Altimeter to self-calibrate each time you turn on 

the unit, to function as a barometer, or to manually 

calibrate when you have accurate elevation or 

pressure data.

1.  On the Setup Menu Page, highlight the 

Altimeter icon, and press ENTER.

2.  Highlight the Auto Calibration field, and press 

ENTER to select from On or Off. When On, 

elevation is corrected by GPS. 

3.  Highlight the 

Barometer Mode field, and press 

ENTER to select Variable Elevation (used 

when moving) or Fixed Elevation (used when 

stationary, allowing the Altimeter to function 

as a standard barometer). Trip data is not 

recorded when in Fixed Elevation mode.

1.  Highlight the 

Calibrate Altimeter button, and 

press 

ENTER. You can calibrate the Altimeter 

using one of three methods:

  Enter the correct elevation: this requires a 

reliable source for determining the elevation 

for your current location.  

  Enter the correct pressure: this requires a 

reliable source to determine the accurate 

barometric pressure at your current location. 

  Allow the GPS  Receiver to determine the 

elevation: the GPS receiver estimates the 

current elevation when determining its location. 

The accuracy varys depending on the position 

of satellites overhead. It is not as accurate as 

an elevation entered from a known source, but 

is sufficient for most navigation applications.

2.  When finished, a Completed or Failed 

message will display.