1. Introduction
The Garmin eTrex 20 is a rugged, waterproof handheld GPS navigator designed for outdoor activities such as hiking, geocaching, and general navigation. It features a 2.2-inch color display, a worldwide basemap, and supports paperless geocaching. This manual provides instructions for setting up, operating, maintaining, and troubleshooting your eTrex 20 device.
2. Product Overview
2.1 Key Features
- 2.2-inch 65K color TFT display for clear visibility.
- Supports paperless geocaching, allowing direct download of geocache information.
- Rugged and waterproof design for durability in various outdoor conditions.
- Includes a worldwide basemap with shaded relief for basic navigation globally.
- Up to 25 hours of battery life using 2 AA batteries.
- High-sensitivity, WAAS-enabled GPS receiver with HotFix satellite prediction.
- MicroSD card slot for additional map storage.
2.2 Device Components
Figure 2.2.1: Front view of the Garmin eTrex 20, showing the screen, joystick, and buttons.
Figure 2.2.2: Back view of the Garmin eTrex 20, showing the battery cover and belt clip attachment point.
Figure 2.2.3: Side view of the Garmin eTrex 20, highlighting the menu, back, and light buttons.
3. Setup
3.1 Battery Installation
- Locate the battery cover on the back of the device.
- Turn the D-ring fastener counter-clockwise to unlock the cover.
- Remove the battery cover.
- Insert two AA batteries, observing the polarity markings (+ and -).
- Replace the battery cover and turn the D-ring fastener clockwise to secure it. Ensure the cover is properly sealed to maintain water resistance.
Note: AA batteries are not included with the device. Use high-quality alkaline or NiMH rechargeable batteries for optimal performance.
3.2 Powering On/Off
- To power on the device, press and hold the Light button on the right side of the device.
- To power off the device, press and hold the Light button until the power off prompt appears, then select Off.
3.3 Initial Setup
Upon first power-on, the device will guide you through initial setup steps, including:
- Language Selection: Choose your preferred language.
- Time Zone: Set your current time zone.
- Unit Format: Select preferred units for distance, speed, and elevation.
4. Operating Instructions
4.1 Basic Navigation and Main Menu
The eTrex 20 is operated using the joystick and side buttons. The main menu provides access to all device functions.
- Use the Joystick to scroll through menu options and move the map cursor. Press the joystick to select an item.
- The Menu button (left side) opens the options menu for the current page or returns to the previous page.
- The Back button (right side) returns to the previous page.
- The Light button (right side) controls the backlight and powers the device on/off.
Figure 4.1.1: Main menu screen of the eTrex 20, showing various application icons.
4.2 Map Screen
The Map screen displays your current location, tracks, waypoints, and routes. Use the joystick to pan the map. Press the Zoom In and Zoom Out buttons (up/down arrows on the left side) to adjust the map scale.
Figure 4.2.1: Map screen displaying a route and current position.
4.3 Waypoints, Tracks, and Routes
- Waypoints: Mark and save specific locations. From the main menu, select Mark Waypoint to save your current location.
- Tracks: Record your path as you travel. The device automatically records a track log. You can save, view, and navigate saved tracks.
- Routes: Create a sequence of waypoints to follow a planned path. Routes can be created on the device or transferred from a computer using Garmin BaseCamp software.
4.4 Geocaching
The eTrex 20 supports paperless geocaching. You can download GPX files directly to the device, which contain geocache details, hints, and descriptions.
- Connect the eTrex 20 to your computer using a USB cable.
- Download GPX files from geocaching websites (e.g., geocaching.com).
- Transfer the GPX files to the Garmin/GPX folder on your device.
- Disconnect the device. From the main menu, select Geocaches to view and navigate to downloaded geocaches.
4.5 Connecting to a Computer
To transfer data such as maps, waypoints, tracks, and geocaches, connect your eTrex 20 to a computer using a USB cable. The device will appear as a mass storage device. Garmin's free BaseCamp software is recommended for managing data and maps.
5. Maintenance
5.1 Cleaning the Device
- Clean the device casing with a cloth dampened with a mild detergent solution.
- For the screen, use a soft, lint-free cloth. Avoid abrasive cleaners or solvents.
- Ensure the USB port cover is closed when not in use to prevent dirt and moisture ingress.
5.2 Water Resistance
The eTrex 20 is waterproof to IEC 60529 IPX7 standards, meaning it can withstand incidental exposure to water of up to 1 meter for 30 minutes. Ensure the battery cover is properly sealed before exposing the device to water.
5.3 Storage
When storing the device for extended periods, remove the batteries to prevent leakage. Store in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device will not power on. | Dead or incorrectly installed batteries. | Replace batteries with fresh ones, ensuring correct polarity. |
| No GPS signal. | Obstructed view of the sky; device indoors. | Move to an open outdoor area with a clear view of the sky. Allow several minutes for satellite acquisition. |
| Map not displaying correctly. | Incorrect map settings; corrupted map data. | Check map settings in the device menu. Reinstall maps using Garmin BaseCamp if necessary. |
| Short battery life. | High backlight setting; old or low-quality batteries. | Reduce backlight brightness. Use new, high-quality alkaline or fully charged NiMH batteries. |
| Device not recognized by computer. | Faulty USB cable; driver issues. | Try a different USB cable or USB port. Ensure Garmin USB drivers are installed on your computer. |
7. Specifications
| Feature | Detail |
|---|---|
| Display Type | 2.2-inch 65K color TFT LCD |
| Display Resolution | 128 x 160 pixels |
| Dimensions (WxHxD) | 2.1" x 4.0" x 1.3" (5.4 x 10.3 x 3.3 cm) (Approximate) |
| Weight | 0.14 Kilograms (Approx. 4.9 oz) with batteries |
| Battery Type | 2 AA batteries (not included) |
| Battery Life | Up to 25 hours |
| Water Rating | IPX7 (submersible to 1 meter for 30 minutes) |
| Basemap | Worldwide with shaded relief |
| Memory | 1.7 GB internal, microSD card slot |
| Interface | USB |
| Supported Satellite Systems | GPS |
| Control Method | Push Button, Joystick |
8. Warranty Information
The Garmin eTrex 20 comes with a 1-year limited warranty covering parts and labor from the date of purchase. This warranty does not cover damage caused by accident, abuse, misuse, water, flood, fire, or other acts of nature or external causes. For full warranty terms and conditions, please refer to the official Garmin website or contact Garmin customer support.
