can you retain GPS almanac when modem is powered off

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  • September 14, 2011 at 3:11 pm #2630
    CJ Tinsley
    Participant

    We have the MTSMI‑UDK dev kit, along with the iCell socket modem MTSMC-G2-GP. The problem we are having is anytime the devboard is powered down the GPS almanac is lost and it significantly increases the time the GPS takes to acquire a signal. Our application will require the modem to power off to conserve on battery consumption, but it is also important that the GPS acquires a signal as quickly as possible.

    Is there a way to use a coin cell battery as a battery back up to keep the GPS almanac live? If so were would we put it on the dev board?

    September 14, 2011 at 9:47 pm #3375
    Darrik Spaude
    Keymaster

    Currently it is not possible to keep the GPS unit alive when the SocketModem is powered off. The GPS chip we use does have a battery back-up capability, but it requires a hardware modification to accommodate this. We will add your request to the hardware revision list.

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