Summary
NMEA 0183 standard Recommended Minimum Specific GNSS Data.

Syntax
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>*hh<CR><LF>

Fields
<1>    UTC of position, in the form hhmmss
<2>    Status: A = Data Valid; V = Navigation Receiver Warning
<3>    Latitude, to the nearest .0001 minute
<4>    N if field <2> is North Latitude S if field <2> is South Latitude
<5>    Longitude, to the nearest .0001 minute
<6>    E if field <4> is East Longitude W if field <4> is West Longitude
<7>    Speed Over Ground, knots, to the nearest 0.1 knot
<8>    Course Over Ground, degrees True, to the nearest 0.1 degree
<9>    Date: ddmmyy
<10>   Magnetic Variation, degrees E/W, to the nearest 0.1 degree
<11>   E if field <10> is degrees East W if field <10> is degrees West
<12>   Mode indicator:
            A = Autonomous mode
            D = Differential mode
            E = Estimated (dead reckoning) mode
            M = Manual input mode
            S = Simulator mode
            N = Data not valid




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