Garmin GPSMAP 76CSx User Manual

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4.  Highlight the 

Apply button, and press ENTER 

to reset the data fields. A confirmation 

message appears.

  You can reset or delete data for any of the 

other features represented on the list by 

placing a check mark in the box next to the 

item.

5.  Highlight 

OK, and press ENTER to reset the 

selected options.

6.  To reset all categories shown on the page, 

highlight 

Select All, and press ENTER.

Because the GPSMAP 76CSx relies on the 

Barometric pressure to determine the elevation and 

the pressure at any given elevation can fluctuate, you 

can calibrate the altimeter to increase its accuracy. 

You must know the elevation or pressure at your 

current location. 

1.  Press 

MENU to open the Altimeter Page 

Options menu.

2.  Highlight 

Calibrate Altimeter, and press 

ENTER to open the Calibration Page.

3.  At the message “Do You Know The Correct 

Elevation?” highlight 

Yes, and press ENTER.  

Or 

If you do not know the elevation, select 

No to 

use pressure option. If you do not know the 

pressure, select 

No to use the default GPS 

elevation.

4.  Use the 

ROCKER to enter the new elevation 

or pressure, then highlight 

OK, and press 

ENTER to return to the Altimeter Page.