2. Initial Hardware Setup

1. With the main battery disconnected, install an unlocked 2G SIM card into the SIM card holder on the underside of the main board.
2. Connect an appropriate cellular GSM antenna to the main board’s U.fl connector.
3. Confirm the (2) two jumpers are installed on the pin headers labeled Rx and Tx next to the GPS IC.
4. (Optional) Install a 12mm coin cell backup battery for the GPS memory on the underside of the board. Please note the correct polarity of the battery before installing the battery. While this step is optional, using a backup battery for the GPS will ensure a faster time to fix if the main battery is ever disconnected.
5. Install a single cell lithium polymer battery to the main board via the 2 pin JST connector.
6. If possible, move the unit outdoors so the GPS engine can get a satellite fix to download the necessary almanac data to compute a position fix. If it’s not possible to move the unit outdoors, try to place it as close as possible to the nearest window. It can take up to 15 minutes for the GPS to get an initial satellite fix and download the necessary data. While the GPS is acquiring the signal, the LED located next to the GPS will blink. Once the GPS has a signal, the LED will shut off. The last known set of valid coordinates will always be stored in memory (unless the main battery is removed) and will be updated every second.
7. Wait for the GSM to register to the cellular network. As soon as power is applied to the Geogram ONE, the onboard GSM will attempt to register the SIM card with the appropriate cellular network carrier. While attempting to register to the network, the NETLIGHT LED will flash at a fast rate (64ms On/ 800ms Off). Once the GSM connects to the appropriate network, the LED will change to a slower blink rate (64ms On/ 3000ms Off). If the unit fails to register to the network after a minute or so, try removing the main battery and reseating the SIM card.