This manual explains how to set up a Garmin eTrex GPS unit, install batteries and a microSD card, configure maps, and record track logs for OpenStreetMap.
The document provides step‑by‑step instructions for preparing a Garmin eTrex handheld GPS receiver for field use. It covers battery and microSD installation, data transfer, map loading, and basic configuration of system, unit, and time settings.
Key sections include initializing the receiver, loading OpenStreetMap‑compatible .img maps, setting up track logging (interval, wrap‑when‑full, and data‑card options), and detailed guidance on collecting points of interest, ways, and areas for mapping projects.
| Battery type | Two AA batteries (not included) |
|---|---|
| Maximum internal track points | 10000 points |
| Track log interval | 1 second |
| Map file format | .img |
Remove the battery compartment cover, insert two AA batteries observing the proper polarity, and replace the cover.
Copy the downloaded gmapsupp.img file to a folder named Garmin on the device after connecting it in USB Mass Storage mode.
In the Track Log Setup page, set the interval to 00 hrs 00 min 01 sec and confirm the setting.
Up to 10 000 track points can be stored in the unit’s internal memory.