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eTrex HC series Owner’s Manual 35
MaIn paGeS
3. Highlight �pply, and press ENTER to reset the
data elds. A conrmation message appears.
Calibrating the Altimeter
Because the altimeter relies on the barometric
pressure to determine the elevation and the pressure
at any given elevation can uctuate, calibrate the
altimeter to increase its accuracy.
To manually calibrate the altimeter:
1. Press MENU > Calibrate �ltimeter.
2. At the message “Do You Know The Correct
Elevation?” select Yes. If you do not know the
elevation, select No to use the pressure option.
If you do not know the pressure, select No to
use the default GPS elevation.
3. Use the ROCKER to enter the new elevation or
pressure. Select OK.
Trip Computer Page
The Trip Computer page shows eight types of
navigation data. Choosing Big Numbers arranges the
page in three large data elds.
Trip Computer Page
Each data field is selectable and can contain one of
many data information options. When the data field
title is selected, press ENTER to make a new choice.
Trip Computer Page Options
The option menu allows you to reset the Trip
Computer data when you are ready to start a new trip,
choose between Big or Small Numbers, and Restore
Defaults.