personal navigator

owners manual

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2000 -2003 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062 U.S.A. Tel. 913/397.8200 Fax 913/397.8282 Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K. Tel. 44/1794.519944 Fax 44/1794.519222 Garmin (Asia) Corporation No. 68, Jangshu 2nd Road., Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099 All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without prior written consent of Garmin Ltd. Garmin Ltd. hereby grants permission to download a single copy of this manual onto a hard drive or other electronic storage medium to be viewed for personal use, provided that such electronic or printed copy of this manual contains the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual is strictly prohibited. Information in this manual is subject to change without notice. Garmin Ltd. reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes. Visit the Garmin web site for current updates and supplemental information concerning the use and operation of this and other Garmin products. Web site address: www.garmin.com Garmin and eTrex are registered trademarks of Garmin Ltd. and may not be used without the express permission of Garmin Ltd.

February 2003

Part Number 190-00205-02 Rev. C

Printed in Taiwan

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Introduction
Learning to Use Your New eTrex

On Your Mark.

The eTrex is easy to learn to operate and use for many practical navigation applications. Understanding button operation and display screen conventions will take only a few minutes and you can begin basic navigation with just a little instruction. To get the most practical use from your new eTrex, take the time to read through this Owners Manual to understand the operating features of the unit. This manual has been designed to provide all that you need to know to operate your eTrex.

eTrex Registration

Help us to better support you by completing your on-line registration today! Why should you register your eTrex purchase? Notication of Product Updates Notication of New Products Connect to our web site (www.garmin.com) and look for the Product Registration link on the home page. If your eTrex contains an 8-digit serial number, it can be found inside the battery compartment.
Thanks for choosing the Garmin eTrex. If you have any questions or comments regarding the use of the eTrex you can visit our web site (www.garmin.com) or contact our Customer Service Department: M-F, 8:00-5:00 CST (except holidays) at 1-800-800-1020.

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Introduction Table of Contents
Introduction.. 1-8 Registration... 1 Warnings and Cautions.. 3 FCC Compliance Statement.. 4 Features... 5 Buttons... 6 Description... 7 Accessories... 8 Installing the Batteries.. 8 Getting Started.. 9-17 Satellite Page Basics.. 10 Map Page Basics... 11 Navigation Page Basics.. 12 Main Menu Page Basics.. 13 Creating a Waypoint... 14 Heading in the Right Direction.. 16 Cancelling a GOTO.. 17 Reference... 18-41 Map Page Options... 19 Navigation Page Options... 20 Main Menu... 21 Mark Waypoint Page.. 22 Waypoints Page.. 23 Review Waypoint Page.. 24 Routes... 27 Tracks... 30 Setup Menu... 33 Appendices.. 42-51 Appendix A: Specications.. 42 Appendix B: What is GPS?.. 43 Appendix C: Satellite Reception Tips.. 44 Appendix D: Time Offset Chart. 45 Appendix E: Wiring Diagram.. 46 Appendix F: Troubleshooting.. 47 Appendix G: FAQs.. 48 Appendix H: Index.. 49 Warranty... 52 2

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WARNING: If you choose to use the eTrex in a vehicle, it is the sole responsibility of the owner/operator of the eTrex to secure the GPS unit so that it will not cause damage or personal injury in the event of an accident. Do not mount the eTrex over airbag panels or in a place where the driver or passengers are likely to have an impact with it in an accident or collision. WARNING: If you choose to use the eTrex in a vehicle, it is the sole responsibility of the operator of the vehicle to operate the vehicle in a safe manner, maintain full surveillance of all driving conditions at all times, and never become distracted by the eTrex to the exclusion of safe operating practices. It is unsafe to operate the eTrex while you are driving. Failure by the operator of a vehicle equipped with an eTrex to pay full attention to operating the vehicle and road conditions while the vehicle is in motion could result in an accident or collision with property damage and personal injury. CAUTION: IT IS THE USERS RESPONSIBILITY TO USE THIS PRODUCT PRUDENTLY. THIS PRODUCT IS INTENDED TO BE USED ONLY AS A TRAVEL AID AND MUST NOT BE USED FOR ANY PURPOSE REQUIRING PRECISE MEASUREMENT OF DIRECTION, DISTANCE, LOCATION, OR TOPOGRAPHY. CAUTION: The Global Positioning System (GPS) is operated by the government of the United States, which is solely responsible for its accuracy and maintenance. The system is subject to changes which could affect the accuracy and performance of all GPS equipment. Although the eTrex is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted and, therefore, become unsafe. CAUTION: Electronics are protected if immersed, but the battery compartment may get wet. Make sure the batteries and compartment are dry before using. 3

To select a Map Page option:
1. Press the ENTER Button on the MAP Page. 2. The Map Options Menu appears. Press the UP or DOWN Button and highlight the desired option and press ENTER. Once you press ENTER, the change is made and the Options Menu disappears.
Selecting Orient Map Ahead from the Map Page options orients the map to the direction you are moving.
When you select Orient Map Northward the gure icon is replaced by a direction triangle. The tip of the triangle tells you the general direction you are moving.
You will notice on the Map Page the little grey man. The man stands still when you are not moving, he moves when you move, and a blinking ? means the eTrex has lost satellite reception (weak signals). You should relocate the eTrex or move to a place that has a clear view of the sky.

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Reference

Navigation Page Options
In addition to the Navigation Page basics that were covered on page 12, the following Navigation Page options are available: Reset Max Speed: this resets the Maximum Speed achieved during a trip. Reset Trip: the trip time, trip distance (odometer) and average speed are reset to zeros. Stop Navigation: stops any active navigation. To resume navigation, you must re-activate the Goto, Track, or Route.
To select a Navigation Page option:
1. Press the ENTER Button on the NAVIGATION Page. 2. The Options Menu appears. Press the UP or DOWN Button, highlight the desired option, and then press ENTER. Once you press ENTER, the change is made and the Options Menu disappears.
The Navigation Page allows you to display eleven types of different data, such as Elevation.
The Navigation Page Options Menu

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Reference Navigation Page Options
Navigation Page Data Fields
You can also change the elds at the bottom of the Navigation Page to display different data: Speedlike the speedometer in your car, SPEED tells you how fast you are going regardless of whether or not you are on the right track. Average Speedthe average speed traveled since last trip reset. Max Speedthe maximum speed traveled since last reset. Headingthe direction you are traveling. Bearingthe compass direction between your location and destination. Elevationthe measurement of height above mean sea level. Locationshows your current position coordinates. Sunrisethe time of sunrise at your present location. Sunsetthe time of sunset at your present location. Trip Timethe total time you have traveled since the last trip reset. Trip Odometerlike the odometer in your car, TRIP ODOMETER tells you how far youve gone since the last trip reset.

MAKE SURE you want to delete all of the waypoints before you press ENTER!

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Reference Review Waypoint Page

Review Waypoint Page

The Review Waypoint Page allows you to change the waypoint symbol, name, elevation and location (just like on the Mark Waypoint Page). You can also delete the waypoint, display the waypoint on the Map Page, and start a GOTO.

To delete a waypoint:

1. On the REVIEW WAYPOINT Page, press the UP or DOWN Button and highlight DELETE. Press the ENTER Button. A conrmation message box appears asking if you really want to delete the waypoint. If you do, press the UP or DOWN Button, highlight YES and press ENTER.
The REVIEW WAYPOINT Page allows you to delete a waypoint.
If you change your mind and do not want to delete the waypoint, press the UP or DOWN Button, highlight NO and press ENTER. The conrmation message box disappears and the waypoint remains in memory (you can also press the PAGE Button to exit).

To start a GOTO:

1. On the REVIEW WAYPOINT Page, press the UP or DOWN Button and highlight GOTO. Press the ENTER Button. The GOTO is activated with the selected waypoint as the destination.
To view the selected waypoint on the Map Page:
1. On the REVIEW WAYPOINT Page, press the UP or DOWN Button and highlight MAP. Press the ENTER Button. The selected waypoint is displayed on a map with bearing and distance. You can use the UP or DOWN Buttons to zoom in and out on the map. Press the PAGE Button and switch back to the WAYPOINTS Page.
You can start a GOTO from the REVIEW WAYPOINT Page.

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Hunt & Fish Page
The Hunt and Fish Page provides you with a listing of best times for hunting and shing for the chosen location (waypoint) and date. This page also provides the Sun and Moon Page option.
To view the Hunt /Fish Page:
1. On the REVIEW WAYPOINT Page, press the UP or DOWN Button and highlight HUNT/FISH. Press the ENTER Button to display the Hunt/Fish Page. 2. Observe that the data provided on the page reects best times for the current date and at the location of the waypoint unless you enter a new date in the eld.

NOTE: The times displayed are the recognized best and good times for hunting and shing. But, be certain that they are not in conict with state and local game laws which may vary from location to location. It is your responsibility to know and abide by these laws.

Sun/Moon Page

The SUN/MOON Page provides you with best hunting and shing times for a waypoint
The Sun/Moon Page displays both sun and moon set and rise times for a chosen location (waypoint) and date. This page option is located at the bottom of the Hunt/Fish Page.
To view the Sun/Moon Page:
1. On the Hunt/Fish Page, press the UP or DOWN Button and highlight SUN/MOON. Press the ENTER Button to display the Sun/Moon Page. 2. View the Sunrise and Sunset Times, Moonrise and Moonset Times as well as the Moon Phase for the waypoint location and date. 3. You can set the date at which you want to view the sun and moon position (if other than current) by entering the desired date in the Date Field. 4. Return to the Hunt/Fish Page by highlighting the Hunt /Fish option at the bottom of the page, the press the ENTER Button.
The SUN/MOON Page allows you to view Sun/Moon rise and set for any date for a waypoint. It also displays the Moon Phase.

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Using the Project feature can create a waypoint at a specied distance and bearing using a new or existing waypoint as a reference. This works best when using a map and compass to determine distance and bearing. You can also change the name, symbol and elevation on this page.

Projecting a waypoint:

1. To project a waypoint from a waypoint on the waypoint list (in order to insert a new waypoint in a route, for example), select the route waypoint from the list on the WAYPOINTS Page and press ENTER. The REVIEW WAYPOINT Page displays. To project a waypoint from your current location (i.e., in order to travel to a location sighted in the distance), press and hold the OK Button to mark your location and save it as a waypoint. Then, select it from the waypoints list, and press ENTER to display the REVIEW WAYPOINT Page. 2. Using the UP or DOWN Button, highlight the PROJECT eld and press ENTER. The PROJECT WAYPOINT Page appears and a numeric name is assigned to the new waypoint. 3. The distance eld is highlighted by default. Press ENTER to display the EDIT NUMBER Page. 4. On the EDIT NUMBER Page, pressing the DOWN Button moves the highlight to the next number in the eld. With the desired digit selected, press ENTER to activate the drop-down number list. 5. Using the UP or DOWN Button, select the correct number and press ENTER. When all numbers are entered correctly, highlight OK and press ENTER. 6. Using the DOWN Button, highlight the bearing eld and press ENTER to display the EDIT ANGLE Page. 7. On the EDIT ANGLE Page, pressing the DOWN Button moves the highlight to the next number in the eld. With the desired digit selected, press ENTER to activate the drop-down number list. 8. Using the UP or DOWN Button, select the correct number and press ENTER. When all numbers are entered correctly, highlight OK and press ENTER. 9. Highlight GOTO and press ENTER to save the waypoint and begin direct navigation to the point.

The PROJECT WAYPOINT Page

The EDIT NUMBER Page

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Route and Route Page

Routes

The eTrex allows you to navigate using one of three methods: GOTO Route TracBack The GOTO method of navigation was briey discussed on page 16. The Route feature and the GOTO feature are comparable in that they both guide you to destination waypoints. However, the route feature is more powerful because it is more automatic. When you reach one waypoint, the eTrex automatically guides you to the next waypoint on the route without needing to touch any buttons. When you use the GOTO feature you have to stop and select the next waypoint before you start moving. When you plan a trip, you can select waypoints from a waypoint list and put them into the eTrexs memory. At least 2 waypoints (up to a maximum of 50) are linked together to form a route. In the eTrex, a route is at least two waypoints that describe the path you are going to travel. The Route feature is very convenient because it allows the eTrex to guide you from the rst waypoint in the route, to each successive waypoint until you reach your nal destination. When you start your trip, you activate the route feature and the eTrex points the way you should travel to get from the rst waypoint to the second. You can then use the Navigation page to give you steering guidance. TracBack, is discussed on page 28.
The ROUTE feature is found on the MENU Page.
You can use existing waypoints to build the route.

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Reference Routes
There are two ways to create a route:
1. Use existing waypoints that reside in the eTrex. Choose ROUTE on the MENU Page, then add a waypoint into the route from a list of available waypoints. 2. Plan a ROUTE in MapSource on a PC, and use Save To Device to download the ROUTE to the eTrex. See your Garmin dealer for more information on using MapSource (MapSource is an optional accessory, and is not included with the eTrex).
You can insert a waypoint before an existing waypoint in the list or at the end of the waypoint list.
In either case, you can navigate to a destination using ROUTE if a route has more than two waypoints. A single waypoint route is only a normal waypoint, not a route. The eTrex will not allow the FOLLOW button to be highlighted if there is only one waypoint in the route. When you select the FOLLOW button, a list with two items is displayed letting you choose where to go. The list will always show the FIRST (BEGINNING) and the LAST (END) waypoint in the route. The eTrex will guide you to the selected nal destination following each waypoint in the route (the eTrex has one route).

3. You will be asked DO YOU REALLY WANT TO CLEAR THE TRACK LOG?. Use the DOWN Button to highlight YES and press ENTER to clear the current track log.

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To save a track for navigation later:
1. Press the PAGE Button and switch to the MENU Page. Press the UP or DOWN Button and highlight TRACKS. Press ENTER. The TRACK LOG Page appears. 2. Press the UP or DOWN Button and highlight SAVE and press ENTER. The SAVE BACK THROUGH window appears giving you a time frame for saving a track or ENTIRE LOG. Press the UP or DOWN Button and select the desired option. Press ENTER. The saved track appears graphically on a sub page. Press the UP or DOWN Button and select OK. Press ENTER. 3. The track is now saved and appears in the SAVED TRACKS list on the TRACK LOG Page.
You can save a track from a specic time or save the entire track log.

Track Logs

NOTE: Saving a Track Log does not remove those points from the active memory.
Renaming a saved track log:
1. With the MENU Page displayed, highlight TRACKS and press ENTER. The TRACK LOG Page will apppear. 2. Place the highlight on a saved track and press ENTER. The saved track will be displayed on a map. 3. A default name will be displayed at the top of the map. Using the UP or DOWN Button, highlight the name and press ENTER. The EDIT TRACK NAME Page will be displayed. 4. With the EDIT TRACK NAME Page displayed, pressing the DOWN Button will move the highlight to the next place in the name eld. When the desired place is selected, press ENTER to activate the drop-down alphanumeric list. 5. Using the UP or DOWN Button, select the correct character and press ENTER. When the name has been entered correctly, highlight OK and press ENTER.
The EDIT TRACK NAME Page.

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To delete all tracks:
1. On the TRACK LOG Page, press the UP or DOWN Button and highlight DELETE ALL. Press ENTER. The verication window appears. 2. If you really want to delete all saved tracks, press the UP or DOWN Button and highlight YES. Press ENTER. If you change your mind, press the UP or DOWN Button and select NO. Press ENTER. The tracks remain in memory (or press PAGE to exit).

To delete a saved track:

Display and Units Pages

To adjust the display contrast:
1. Press the PAGE Button and switch to the MENU Page. Press the UP or DOWN Button and highlight SETUP. Press ENTER. The SETUP Page appears. 2. Press the UP or DOWN Button and highlight DISPLAY and press ENTER. Press the UP or DOWN Button and highlight the CONTRAST slider and press ENTER. 3. Press the UP or DOWN Button to move the slideradjust the contrast and then press\ ENTER. Press PAGE to get back to the SETUP page.
You can set the backlight to stay on all the time, but watch your battery power!

Units Page

Using your eTrex with a paper map increases the navigation power of both. If you are going to use a map in conjunction with the eTrex, you must select the position format (grid), map datum, map units, and north reference and variance to match the maps units. Angle displays directional information in degrees or mils. This is the purpose of the Units Page. Regarding position format, the eTrex allows you to choose from eighteen different grids. The eTrex supports the UTM/UPS and latitude/longitude grids because together they cover the world.
The UNITS Page allows you match the units of the eTrex to the units of a unique paper map you may be using.

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Reference Map Datums

Position Format
The default position format (and the one most commonly used) for the eTrex is latitude and longitude in degrees and minutes (hddd mm.mmm). You may also choose from 17 other position formats. There is also a User position format which allows you to approximate custom-designed grids. For more information on grids and datums we recommend you visit the National Imagery and Mapping Agency at http://www.nima.mil.
To change the Position Format (grid):
1. Press the PAGE Button and switch to the MENU Page. Press the UP or DOWN Button and highlight SETUP. Press ENTER. Use the UP or DOWN Button to select UNITS. Press ENTER. The UNITS Page appears. 2. Press the UP or DOWN Button and select the POSITION FRMT eld. Press ENTER. 3. Press the UP or DOWN Button and select the desired format. Press ENTER. Press PAGE to get back to the page of your choice.
Eighteen position formats are available in the eTrex.

Map Datums

Data Entry Pages exist for the User Grid Format and the User Datum Setup. These pages allow you to congure the eTrex for compatibility with custom designed grids. We recommend surng the net for links to Garmin user-grid and user datum information. There are also excellent navigation and GPS articles available on-line which will enhance your overall knowledge of GPS.

A map datum is a reference model of the earths shape. Every map uses a map datum. The map datum is usually listed in the title block of the map. If you are comparing GPS coordinates to a paper map or other reference, the map datum in the eTrex should match the horizontal map datum used to generate the chart or other reference. The default datum in the eTrex is WGS 84 (World Geodetic Survey, 1984). You should only change the datum if you are using maps or charts that specify a different datum than WGS 84. If no datum is specied, you can select each datum applicable to your region until you nd the datum that provides the best positioning at a known point. You may also choose the User datum for use with custom-designed grids.

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To change the Map Datum:

1. Press the PAGE Button and switch to the MENU Page. Press the UP or DOWN Button and highlight SETUP. Press ENTER. Use the UP or DOWN Buttons to select UNITS. Press ENTER. The UNITS Page appears. 2. Press the UP or DOWN Button and select the MAP DATUMS eld. Press ENTER. 3. Press the UP or DOWN Button to select the desired datum. Press ENTER. Press PAGE to select the page of your choice.

Units of Measure

The eTrex lets you select statute (the default setting), nautical, or metric units of measure for all speed and distance readouts.
To change the Units of Measure:
1. Press the PAGE Button and switch to the MENU Page. Use the UP and DOWN Button and highlight the SETUP eld. Press ENTER. The SETUP Page appears. 2. Press the UP or DOWN Button to select UNITS. Press ENTER. The UNITS Page appears. 3. Press the UP or DOWN Button and select the UNITS eld. Press ENTER. 4. Press the UP or DOWN Button to select the desired unit. Press ENTER. Press PAGE to select the page of your choice.
You can select statute, nautical, or metric units of measurement from the UNITS page.
The DEFAULTS setting will reset the eTrex units to all of its factory settings.

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Reference Units of Measure

North Reference

MAGNETIC north is the default north reference setting.
Reference refers to the orientation of a maps grid. Map makers try to align the vertical lines on a map with True North. True North is the direction from any location on the earths surface to the north pole. Maps are typically referenced to true north. Because a compass points to magnetic north, not true north, maps indicate the difference between true and magnetic north with something called declination. Declination changes as you move around the earth. Magnetic North is the direction in which a compass needle points. The eTrex bearings will correspond to a compass if the eTrex is set to magnetic north. Due to errors introduced when map makers atten the earths sphere, not all of the grid lines drawn on the map point exactly to the north pole, so the north indicated by the grid lines is called Grid North. But, the difference is usually small enough that Grid north can be considered the same as True North for travelling on land. You can correct for the difference for True North manually.

To change the North Reference:
1. Press the PAGE Button and switch to the MENU Page. Use the UP and DOWN Button and highlight the SETUP eld. Press ENTER. The SETUP Page appears. 2. Press the UP or DOWN Button to select UNITS. Press ENTER. The UNITS Page appears. 3. Press the UP or DOWN Button and select the NORTH REF eld. Press ENTER. 4. Press the UP or DOWN Button to select the desired reference. Press ENTER. Press PAGE to return to the page of your choice.
You can set the unit to display directional information in DEGREES or MILS.
To select an Angle setting:
Angle Allows you seset directional information in degrees or mils.
1. With Units Page displayed, select the Angle Field and press ENTER. Then select from DEGREES or MILS and press ENTER again.
When you select the DEFAULTS eld and press ENTER, the UNITS page returns to the factory settings.

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Interface Page

The Interface Page allows you to connect and use devices such as computers and differential GPS (DGPS) beacon receivers with the eTrex.

Input/Output Settings

The Interface Settings Page allows you to use your eTrex with external NMEA devices, DGPS beacon receivers, a personal computer, etc. You can choose from seven different input/output serial data formats, or none at all. Below is a description of each format: Garmin - the proprietary format used to exchange waypoint, route, and track data with a PC. Garmin DGPS - allows DGPS input using a Garmin beacon receiver and a standard RTCM SC-104 format and DGPS tuning. NMEA OUT - supports the output of standard NMEA 0183 version 3.0 data. TEXT OUT - allows simple ASCII text output of location and velocity information, without any input capabilities. RTCM IN - allows DGPS input using a standard RTCM SC-104 format without any output capabilities. RTCM/NMEA- allows DGPS input using a standard RTCM SC-104 format and supports the output of standard NMEA 0183 version 3.0 data. RTCM/TEXT- allows DGPS input using a standard RTCM SC-104 format and simple ASCII text output of location and velocity information. NONE - provides no interfacing capabilities.
NOTE: Use the RTCM IN setting if your beacon receiver is self-tuning.
NMEA stands for National Marine Electronics Association and RTCM stands for Radio Technical Commission for Maritime Services. Both are involved in developing technical standards for the marine electronics industry. The interface options will allow you to use a PC to download waypoints, routes, and track logs.

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Reference System Page

Offs e t - 12 - 11 - 10 -9 -8 -7 -6
Longitudinal Zone E007.5 to E022.5 E022.5 to E037.5 E037.5 to E052.5 E052.5 to E067.5 E067.5 to E082.5 E082.5 to E097.5 E097.5 to E112.5
Offs e t +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12
-5 -4 -3 -2 -1 -0 E112.5 to E127.5 E127.5 to E142.5 E142.5 to E157.5 E157.5 to E172.5 E172.5 to E180.0
A simple way to determine your local time offset is how many hours you are behind or ahead of UTC (also called Greenwich or zulu time) Example: EST (Eastern Standard Time) is 5 hours behind UTC, so your offset would be -5. Adding one hour for daylight savings would make EDT (Eastern Daylight Time) -4. Subtract an hour for each time zone as you travel west. Offsets for Continental U.S. would be: EST: -5 EDT: -4 CST: -6 CDT: -5 MST: -7 MDT: -6 PST: -8 PDT: -7

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Appendix E Wiring Diagram
Interface formats are selected from the SETUP Page. The input/output lines on your eTrex are RS-232 compatible, allowing easy interface to a wide range of external devices, including PCs, differential beacon receivers, marine autopilots and/or a second GPS receiver. The NMEA 0183 version 2.3 interface format is supported by the eTrex and enables the unit to drive up to three NMEA devices.
NMEA 0183 Version 3.0 Approved Sentences:
GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC, GPRTE, GPVTG, GPWPL, GPBOD
Garmin Proprietary Sentences:
PGRME (estimated error), PGRMM (datum string), PGRMZ (altitude), PSLIB (beacon receiver control) DGPS (Differential GPS) corrections are accepted in RTCM SC-104 version 3.0 format through the Data In line. The Garmin GBR 21 and GBR 23 are the recommended beacon receivers for use with the eTrex. Other beacon receivers with the correct RTCM format may be used, but may not correctly display status or allow tuning control from the GPS unit. The eTrex may be hard-wired to a serial connector using the Data Cable (see the Garmin web site, www.garmin.com for ordering information). Refer to the wiring diagram and the eTrex unit data connection illustrated below. The optional PC Interface Cable allows you to connect your eTrex to a PC-compatible computers serial port.
Ground (-) Data Out Data In Ground (-) Power (+) Data Out eTrex Connector

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Data In

eTrex does not turn on:
1. Check to see if the batteries are installed correctly and that the battery terminals are clean.
Appendix F Troubleshooting
It takes more than 10 minutes to get a location x:
1. There may be large obstacles overhead; move to a new location with a clear view of the sky. 2. See Satellite Reception Tips on page 44.
The arrow on the Navigation Page does not point to the destination:
1. Navigation information is based on your movement. If you are standing still, the information is not updating. Since the eTrex is not a compass it cannot show you which way you are facing while you are standing still.
eTrex coordinates do not match the location on your map:
1. Check to make sure the eTrex is congured to use the same position format and datum as your map. See page 36.
NOTE: The Auto Power Adapter converts 12 VDC to 3 VDC output for the eTrex. This adapter is not interchangeable with car power adapters designed for the Garmin VHF 720 and 725, GPS 170, 175, 190 and 195.

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Appendices Appendix G FAQs
Can I use the eTrex indoors? No. The DEMO mode is available, but we suggest that only dealers use it. Do I need to subscribe to a service to use the eTrex? No. The GPS satellites are owned by the United States Department of Defense (DoD) and have been funded by U.S. taxpayers dollars. Reception of GPS satellite signals is free to everyone. What Grid Formats does the eTrex Support? hddd.dddddo (degrees, decimal degrees) hdddomm.mm (degrees, minutes, decimal minutes) hdddommss.s (degrees, minutes, seconds, decimal seconds) British Grid Dutch Grid Finnish KKJ27 Grid German Grid
Irish Grid Does the eTrex work anywhere in the world Maidenhead and in any weather? MGRS (Military Grid Reference System) Yes. New Zealand How accurate is a Garmin GPS? The eTrex is accurate to within 15 meters without Qatar Grid the DoD-imposed Selective Availability (S/A). Using Swedish Grid differential techniques, the eTrex can be as accurate as 1-5 meters. The eTrex is accurate to within Swiss Grid Taiwan Grid 100 meters under S/A. Another factor that will effect the accuracy of the GPS receiver is the geometry of the satellites in view of the GPS receiver. A poor geometry situation can provide less accurate position readings, and this especially applies to GPS altitude measurements. The altitude reading on the GPS unit can vary by +/- 450 ft. depending on the level of degradation being imposed under S/A. It is not uncommon to see the altitude continuously drift up and down when S/A is being imposed. User Dened Grid UTM/UPS (Universal Transfer Mercator/Universal Polar Stereographic) W Malaysian R Can I turn off the Track Log? No. You can clear the track log, but it is always activated.

Why cant I see the display in the daylight? What does the message Adjust the contrast (see page 9). "NO DGPS POSITION" mean? Why cant I interface my computer with the eTrex had a differential x and lost it. eTrex? Make sure that you have the correct INPUT/ OUTPUT format selected on your eTrex.

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A Accessories 8 Auto Zoom 18 Average Speed 20 B Backlighting and Contrast 9 Batteries 8, 40 Battery Save Mode 40 Beacon Receiver 39, 40 Bearing 20 Bearing Line 18 Buttons 6 C Cancelling a GOTO 17 Clear a Route Waypoint 29 Compass 12 Course Line 18 D Data Entry 15, 31 Daylight Savings Time 34 Delete a Waypoint 24 Delete All Waypoints 23 Demo Mode 40 Description 7 DGPS 39,46 Display Page 35 E Edit Waypoints 15, 21-22 Elevation 20, 21 F FCC Compliance Statement 4 Features 5 Frequently Asked Questions 48 G Getting Started 9-17 GOTO 16, 17, 24 GPS 43 GPS Accuracy 48 Grid Formats 48

Appendix H Index

Heading 20 Hunt and Fish 25

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Appendices Appendix H Index
I/O Formats 39-40 Interface Page 39 Installing the Batteries 8
Latitude/Longitude 20 Location 21-22 Low Battery 40
Map Datum 35, 36, 37 Map Display 17-18 Map Orientation 18 Map Page 11, 18 Map Scale 11 MapSource CD 8, 38 Maps 35 Mark a Waypoint 14 Mark Waypoint Page 21-22 Max Speed 20 Menu Page Basics 13 Military Time 33
Navigation 10, 12, 14 Navigation Page 12, 16, 19-20 Nearest Waypoints Page 23 NMEA 39, 46 North Reference 38
Page Basics 10-13 Position Format 36 Projecting a Waypoint 26
Ready to Navigate 10 Registration 1 Review Waypoint Page 24-26 Routes 27-29 RTCM 39

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Satellite Page 9, 10 Satellite Reception 10, 42-44 Setup Page 33-41 Signal Strength Bar 10 Software Version 40 Specications 42 Speed 20 Stop Navigation 18, 19 Sun and Moon 25 System Page 40-41
Time Format 33 Time Offset Chart 45 Time Zones 13, 45 Tracback Navigation 30-32 Track Logs 17, 30-32, 48 Trip Odometer 20 Troubleshooting 47

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For the latest free software updates throughout the life of your Garmin product, visit the Garmin web site at: www.garmin.com.
2000-2003 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K. Garmin (Asia) Corporation No. 68, Jangshu 2nd Road., Shijr, Taipei County, Taiwan www.garmin.com Part Number 190-00205-02 Rev. C

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