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• Display—sets the value (Cardinal Letters,
Degrees, or Mils) to indicate your heading.
• North Reference
—provides headings based on
True, Magnetic, Grid, or User north reference.
• Switch to compass heading when below (for
more than)
—sets the speed and time delay for
electronic compass switching. (See page 49.)
Calibration Setup
The Calibration Setup Page
allows you to calibrate the
compass and altimeter for
increased accuracy in navigation.
To calibrate the compass:
1. On the Setup Menu Page,
highlight the Calibration
icon, and press Enter. The “Which sensor
would you like to calibrate?” message appears.
2. Highlight the Compass button, and press
Enter to open the Compass Calibration Page.
Follow the instructions on page 50.
To calibrate the Altimeter:
Select Altimeter and press Enter to display
the Altimeter Calibration Page. Follow the
instructions on page 61.
Altimeter Setup
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.
To set up the altimeter:
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 the GPS.
74 eTrex Vista Cx Owner’s Manual
MAIN MENU > SETUP MENU