Message Type 82, GPRMC

Standard NMEA message containing time, GPS latitude and longitude, speed, altitude and heading information.

NMEA 0183 v2.0 message format is:

$GPRMC,hhmmss.ss,v,llll.llll,a,yyyyy.yyyy,b,ccc.c,ddd.d,ddmmyy,,*hh<CR><LF>

NMEA 0183 v3.0 message format is:

$GPRMC,hhmmss.ss,v,llll.llll,a,yyyyy.yyyy,b,ccc.c,ddd.d,ddmmyy,,,e*hh<CR><LF>

Where:

hhmmss.ss is the UTC time in hours, minutes, seconds, and decimal seconds

v is the data validity flag: A = valid current data, B = valid stored data, V = invalid current data, W = invalid stored data

llll.llll is the position latitude in degrees, minutes and decimal minutes

a is N(orth) or S(outh)

yyyyy.yyyy is the position longitude in degrees, minutes, and decimal minutes

b is E(ast) or W(est)

ccc.c is the horizontal velocity in knots

ddd.d is the heading in degrees (relative to true north)

ddmmyy is the day, month and year

e is the positioning system mode indicator (NMEA 0183 v3.0 only): A = autonomous mode, D = Differential mode, E = Estimated (dead reckoning) mode, M = Manual input mode, S = Simulator mode, N = Data not valid. Note: The CTM internal GPS module supports autonomous mode only.

hh is the message checksum

Examples:

NMEA 0183 v2.0:

$GPRMC,001207.00,A,4911.2236,N,12254.4779,W,012.3,201.0,170109,,*2D

NMEA 0183 v3.0:

$GPRMC,222414.00,A,4915.3920,N,12259.8072,W,000.2,242.0,211210,,,A*49