Garmin eTrex Vista Owner's Manual And Reference Manual page 29

When you manually turn the Compass Off, it stays
off until you manually turn it On again. Sometimes,
however, when you turn the Compass On, the eTrex
Vista overrides the Compass and uses the GPS receiver
to track your heading. The criteria for switching between
the Compass and the GPS is customized on the 'Heading'
Setup Page. (See page 51.)
To Calibrate the Electronic Compass:
1. Use the PAGE button to access the Navigation
Page.
2. Use the THUMB STICK to highlight the Options
Menu on-screen button and then press it in.
3. Highlight the 'Calibrate Compass' option and press
the THUMB STICK to display the Calibration Page.
4. Press the THUMB STICK to activate the 'Start'
button and then follow on-screen directions for
holding and turning the unit.
The unit displays a "Just Right", "Too Fast" or "Too
Slow" message for you to adjust your turning speed
as needed.
The "Calibration Successful" message displays when
finished. If a "Calibration Failed" message displays,
repeat the process.
The Electronic Compass must be calibrated outdoors
when you first use the eTrex Vista and after new batter-
ies have been installed. The accuracy of the Electronic
Compass is adversely affected if the unit is not held level
or by nearby items that generate magnetic fields, such as
cars and buildings, etc.
Navigation
Options
A Compass Icon is displayed
on this page and the Map Page
to indicate that the Compass
is On.
Electronic Compass On/Off
Message.
Message turns off after 3
seconds.
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