Depending on the geographic location, the GNSS technology used in that region may be
different. For example, Galileo is used in the EU, QZSS is used in Japan, Beidou/Compass is
used in China, and GLONASS is used in Russia.
Please see the QBG96’s
application for a detailed tutorial on how to set up and configure
the modem to receive GPS data.
4.6. Power Save Mode
LTE CAT-M1 brings additional power saving features to cellular modems that were not
previously available. Power Save Mode allows the Skywire to drastically reduce its power
consumption by entering a low power state, while maintaining its registered status on the
cellular network.
The ability for the Skywire to retain its registered status on the network is advantageous in that it
eliminates the need for the modem to constantly have to re-register on the network each time it
exits a low power state.
In PSM mode, the device must be woken up in order to send and receive data. The device can
be woken up by temporarily grounding the ON_OFF pin of the Skywire, or by pressing the
ON_OFF button on the SWDK for a few seconds. In addition, the Skywire modem has two
internal timers that control the duration of each stage of PSM mode - Low Power State and
Wake State.
Please see the QBG96’s
application note for a detailed tutorial on how to
set up and use the modem’s PSM features.
PN 1002152 REV A
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