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General| Battery life (max) | 24 h |
|---|
Weight and Dimensions| Depth | 32 mm |
|---|---|
| Width | 57 mm |
| Height | 159 mm |
| Weight | 185 g |
How to contact Garmin for assistance and useful tips for device operation and battery life.
Safety guidelines for securely installing the Astro 220 in a vehicle and safe driving practices.
Important safety information and warnings regarding the DC 20's lithium-ion battery.
Information on accessing Garmin's web services for product registration and updates.
Describes unit components and covers battery and lanyard installation procedures.
Covers keypad functions, power, backlight, charging, and compass calibration.
Defines key terms, explains manual conventions, and details status bar and messages.
Covers DC 20 communication, naming, info pages, and dog list management.
How to track dogs on map/tracker pages and handle conflicting signals/tracking tips.
Details on starting hunts, navigating to locations, and viewing sunrise/sunset/almanac.
Introduction to the Find menu for locating various map items and points of interest.
Settings for map display, data fields, guidance text, and measuring distance.
Covers finding by name, recent finds, geocaches, cities, exits, addresses, and POIs.
Details on Trip Computer, Compass, Altimeter, Routes, Tracks, Highway, Proximity, and Satellite pages.
Covers Calendar, Calculator, Stopwatch, and Games Menu functionalities.
Setup for system parameters, dog list, alerts, display, and tones.
Configuration for Main Menu, Map Page, and Routing preferences.
Covers Geocache, Marine Alarms, Time, Units, Heading, Calibration, and Altimeter setups.
Technical specs, system care, battery storage, water immersion, and licensing.
Covers FCC compliance, computer connection, microSD, USB mode, and software upgrades.
Transferring maps and tracks, and details on limited warranty information.
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