Garmin Etrex 10,20,30 Owners Manual

eTrex®
owner’s manual
for use with models 10, 20, 30 

© 2011 Garmin Ltd. or its subsidiaries
All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without 
the written consent of Garmin. Garmin reserves the right to change or improve its products and to make 
changes in the content of this manual without obligation to notify any person or organization of such 
changes or improvements. Go to  www.garmin.com for current updates and supplemental information 
concerning the use of this product.
Garmin
®, the Garmin...

eTrex Owner’s Manual 3
Table of Contents
Table of Contents
Getting Started ........................5
Device Overview............................ 5
Using the eTrex Keys  ....................6
Battery Information  ........................7
Turning the Device On or Off  .........8
Satellite Signals  ............................. 8
Registering Your Device  ................ 8
Waypoints, Routes, and 
Tracks ...................................... 9
Waypoints ...................................... 9
Using Sight...

4 eTrex Owner’s Manual
Table of Contents
Setting the Device Tones .............31
Map Settings ................................ 31
Tracks Settings  ............................ 32
Changing the Units of Measure  ... 33
Time Settings  ............................... 33
Position Format Settings  .............33
Heading Settings  ......................... 34
Altimeter Settings  ........................34
Geocaching Settings  ................... 35
Routing Settings  .......................... 36
Marine Map...

eTrex Owner’s Manual 5
Getting Started
Getting Started
‹ WARNING
See the Important Safety and Product 
Information guide in the product 
box for product warnings and other 
important information.
When using your device the first time, 
you should complete these tasks to set 
up the device and get to know the basic 
features.
1.  Install the batteries ( page 7).
2.  Turn on the device ( page 8). 
3.  Acquire satellites ( page 8).
4.  Register the device ( page 8).
5.  Mark a waypoint (page 9).
6.  Create...

6 eTrex Owner’s Manual
Getting Started
➏
➒
➑
➐
➏Mini-USB port (under weather cap)
➐Battery cover
➑Battery cover locking ring
➒Mounting spine
Using the eTrex Keys
• Move the Thumb Stick up, down, 
left, and right to highlight menu 
selections or to move around the 
map.
•  Press the center of the Thumb Stick 
to select the highlighted item.
•  Press back to move back one step 
in the menu structure.
•  Press menu to display a list of 
commonly-used functions for the 
current page. Press menu twice 
to...

eTrex Owner’s Manual 7
Getting Started
Battery Information
‹ WARNING
The temperature rating for the device 
(-4°F to 158°F, or -20 to 70°C) may 
exceed the usable range of some 
batteries. Alkaline batteries can rupture 
at high temperatures.
notice 
Alkaline batteries lose a significant 
amount of their capacity as temperature 
decreases. Therefore, use lithium 
batteries when operating the device in 
below-freezing conditions.
Installing AA Batteries
The device operates on two AA 
batteries. You can...

8 eTrex Owner’s Manual
Getting Started
Turning the Device On or 
Off
Hold .
Satellite Signals
After the device is turned on, it begins 
acquiring satellite signals. The device 
may need a clear view of the sky to 
acquire satellite signals. When the  
GPS bars on the backlight page  
(page 40) are solid green, your device 
has acquired satellite signals. The time 
and date are set automatically based on 
the GPS position.
For more information about GPS, go to 
http://www.garmin.com/aboutGPS .
Registering...

eTrex Owner’s Manual 9
Waypoints, Routes, and Tracks
Waypoints, Routes, 
and Tracks
Waypoints
Waypoints are locations you record and 
store in the device.
Creating a Waypoint
You can save your current location as 
a waypoint.
1. Select  Mark Waypoint.
2.  Select an option:
• To save the waypoint without 
changes, select  Done.
•  To make changes to the 
waypoint, select an item to edit, 
and select  Done.
Finding a Waypoint
1. Select  Where To? > Waypoints.
2.  Select a waypoint.
Editing a Waypoint...

10 eTrex Owner’s Manual
Waypoints, Routes, and Tracks
Increasing the Accuracy of a 
Waypoint Location
Waypoint averaging allows you to 
increase the accuracy of a waypoint 
location by collecting multiple samples 
of the waypoint location. 
1. Select  Waypoint Averaging.
2.  Select a waypoint. 
3.  Move to the location. 
4.  Select  Start. 
5.  When the Sample Confidence status 
bar reaches 100%, select  Save. 
For best results, collect four to 
eight samples for the waypoint, 
waiting at least 90...