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60 GPSMAP 76CSx Owner’s Manual
MAIN PAGES > ALTIMETER PAGE
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.
Calibrate Altimeter
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.
To manually calibrate the altimeter:
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.