Garmin Etrex 10,20,30 Owners Manual

eTrex Owner’s Manual 31
Customizing Your Device
(Night), or automatically 
switches between the two based 
on the sunrise time and the 
sunset time for your current 
location (Auto).
 
◦ Day Background Color—sets 
the background image used in 
day mode.
 
◦ Day Highlight Color—sets 
the color for selections in day 
mode.
 
◦ Night Background Color—
sets the background image used 
in night mode.
 
◦ Night Highlight Color—sets 
the color for selections in night 
mode.
•  Screen Capture—allows you to 
take...

32 eTrex Owner’s Manual
Customizing Your Device
• Data Fields—selects the number 
and size of the data fields to display 
on the map. 
•  Advanced Map Setup —sets the 
zoom levels, the text size, and the 
detail level of the map.
 
◦ Auto Zoom—automatically 
selects the appropriate zoom 
level for optimal use on your 
map. When Off is selected, you 
must zoom in or out manually.
 
◦ Zoom Levels—selects the zoom 
level for map items. 
 
◦ Text Size —selects the text size 
for map items.
 
◦ Detail—selects...

eTrex Owner’s Manual 33
Customizing Your Device
• Auto Archive—selects an 
automatic archive method to 
organize your tracks. Tracks are 
saved and cleared automatically 
based on the user setting.
•  Color (eTrex 20/30)—changes the 
color of the track line on the map. 
Changing the Units of 
Measure
You can customize  units of measure 
for distance and speed, elevation, and 
pressure.
1.  Select  Setup > Units. 
2.  Select a measurement type.
3.  Select a unit of measure for the 
setting.
Time Settings...

34 eTrex Owner’s Manual
Customizing Your Device
• Map Datum—sets the coordinate 
system on which the map is 
structured.
•  Map Spheroid—shows the 
coordinate system the device is 
using. The default coordinate 
system is WGS 84.
Heading Settings
This function is available on the   
eTrex 30. 
Select  Setup > Heading.
•  Display—sets the type of 
directional heading on the compass.
•  North Reference—sets the north 
reference of the compass.
•  Go To Line (Pointer) —allows you 
to select how the course...

eTrex Owner’s Manual 35
Customizing Your Device
• Barometer Mode
 
◦ Variable Elevation —allows the 
barometer to measure changes 
in elevation while you are 
moving.
 
◦ Fixed Elevation —assumes 
the device is stationary at a 
fixed elevation. Therefore, the 
barometric pressure should 
change only due to weather.
•  Pressure Trending
 
◦ Save When Power On—
records pressure data only when 
the device is turned on. This 
can be useful when you are 
watching for pressure fronts.
 
◦ Save Always—records...

36 eTrex Owner’s Manual
Customizing Your Device
• Found Geocaches—allows you 
to edit the number of geocaches 
found. This number automatically 
increases as you log a find   
(page 22).
•  Filter Setup— page 21.
•  chirp
™ Searching—page 23.
•  Program chirp
™—programs the 
chirp accessory. See the  chirp 
Owner’s Manual at 
http://www.garmin.com .
Routing Settings
The device calculates routes optimized 
for the type of activity you are doing. 
The routing settings available vary 
based on the activity...

eTrex Owner’s Manual 37
Customizing Your Device
• Lock On Road—locks the 
position icon, which represents 
your position on the map, onto the 
nearest road.
•  Off Road Transitions—available 
only for some activities.
 
◦ Auto—automatically routes you 
to the next point.
 
◦ Manual—allows you to select 
the next point on the route.
 
◦ Distance—routes you to the 
next point on the route when 
you are within a specified 
distance of your current point.
•  Avoidance Setup—(available only 
for some guidance...

38 eTrex Owner’s Manual
Customizing Your Device
• Marine Alarm Setup
 
◦ Anchor Drag Alarm—alarm 
sounds when you exceed a 
specified drift distance while 
anchored.
 
◦ Off Course Alarm—alarm 
sounds when you are off course 
by a specified distance.
 
◦ Deep Water/Shallow Water—
alarm sounds when you enter 
water of a specific depth.
Setting up Marine  Alarms
1. Select  Setup > Marine  > Marine 
Alarm Setup.
2.  Select an alarm type.
3.  Select  On.
If necessary, enter a distance, then 
select  Done....

eTrex Owner’s Manual 39
Customizing Your Device
Restoring Specific Page 
Settings
You can restore the settings for the 
map, compass, and trip computer. 
1. Open the page for which you will 
restore the settings.
2.  Select  menu > Restore Defaults.
Restoring All Default Settings
You can reset all the setup values to the 
original settings. 
Select  Setup > Reset > Reset All 
Settings > Yes.
Changing the Page 
Sequence
Before you can change the order of the 
page sequence, you must add pages to 
the...

40 eTrex Owner’s Manual
Device Information
Device Information
Adjusting the Screen
NOTE: The backlight brightness may 
be limited when the remaining capacity 
in the batteries 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.
3.  Move the Thumb Stick up and 
down to adjust the contrast level 
(eTrex 10 only).
Adjusting the  Backlight 
Timeout
You can decrease...