6
eTrex
®
20x/30x
EN
when the battery is low.
Extensive use of screen backlighting can
significantly reduce battery life.
1
While the device is on, press
2
Move the Thumb Stick left and right to
adjust the brightness level.
Calibrating the Compass
NOTICE
Calibrate the electronic compass outdoors. To
improve heading accuracy, do not stand near
objects that influence magnetic fields, such as
cars, buildings, or overhead power lines.
The eTrex 30x has a 3-axis, electronic
Compass.
You should calibrate the compass after moving
long distances, experiencing temperature
changes, or changing the batteries.
1
Select
Compass
2
Select
menu
3
Select
Calibrate Compass
>
Start.
4
Follow the on-screen instructions.
Selecting a Profile
Profiles are a collection of settings that optimize
your device based on how you are using it.
For example, your settings and views can be
different when you are using the device for
geocaching and for navigating on water.
