Maestro Wireless Solutions
            Knowledge Base Maestro Wireless Solutions GPS Modules

            A5100-A Outputting in GNRMC instead of GPRMC

            Scenario: Change the module to output GPRMC instead of GNRMC so host software can parse it without update.

            To be able to get the multiple constellation, you should switch the A5100 in OSP mode, by sending command:
            A0 A2 00 0E DE 10 00 00 00 00 00 23 00 00 00 00 00 00 01 11 B0 B3
            which means GPS+GLONASS

            Then switch back to NMEA with command:
            A0 A2 00 18 81 00 01 01 01 01 01 01 05 01 01 01 01 01 00 01 00 01 00 01 01 01 C2 00 01 58 B0 B3

            Now, in NMEA you can turn OFF all protocols except the RMC with:

            GGA off:
            $PSRF103,00,00,00,01*24
            GLL off:
            $PSRF103,01,00,00,01*25
            GSA off:
            $PSRF103,02,00,00,01*26
            GSV off:
            $PSRF103,03,00,00,01*27
            VTG off:
            $PSRF103,05,00,00,01*21
            ZDA off:
            $PSRF103,08,00,00,01*2C

            All these steps can be done by using the SirfLive software, available here.

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