$GPRMC - Recommended Minimum Specific GPS/TRANSIT Data
$GPRMC,154232,A,2758.612,N,08210.515,W,085.4,084.4,230394,003.1,W,A*CC<CR><LF>
   1      2   3    4     5    6      7   8     9      A     B   C D

The fields are:

  • 1 - Sentence identifier
  • 2 - UTC time - the above means 15 hrs, 42 min, 32 sec The seconds part may have a decimal
  • 3 - Validity:
    A for good
    V for no good
  • 4 - Latitude - the above means 27 degrees, 58.612 minutes
  • 5 - Hemisphere:
    N for NORTH
    S for SOUTH
  • 6 - Longitude - the above means 082 degrees, 10.515 minutes
  • 7 - Hemisphere:
    W for WEST
    E for EAST
  • 8 - Speed (knots)
  • 9 - Track - degrees true
  • A - UTC date - the above means day 23, month 03, year 94
  • B - Magnetic variation - degrees
  • C - Variation direction - W for WEST (+), E for EAST (-)
  • D - Mode indicator:
    A for good N for no fix E for estimated fix
  • CC - checksum
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