NAVIOR-24S
™
Appendix D
NMEA 0183 Communication Interface
183
NAVIOR-24S ™
Revision
V1.00 20.05.2008
RMC - Recommended Minimum Specific GNSS Data
The RMC message contains the time, date, position, course, and speed data provided by the GNSS
navigation receiver. A checksum is mandatory for this message and the transmission interval may
not exceed 2 seconds. All data fields must be provided unless the data is temporarily unavailable.
Null fields may be used when data is temporarily unavailable.
Format:
$GPRMC, hhmmss.ss, A, llll.ll, a, yyyyy.yy, a, x.x, x.x, ddmmyy, x.x, a, i <CR><LF>
Field
Format
hhmmss.ss
UTC of Position Fix (when UTC offset has been decoded by the receiver)
A
Status: A = Valid, V = navigation receiver warning
llll.ll, a
Latitude, N (North) or S (South)
yyyyy.yy, a
Longitude, E (East) or W (West)
x.x
Speed over the ground (SOG) in knots
x.x
Track made good in degrees true
ddmmyy Date:
dd/mm/yy
x.x, a
Magnetic variation in degrees, E = East / W= West
i
Position System Mode Indicator;
A=Autonomous
D=Differential,
E=Estimated (Dead Reckoning)
M=Manual Input
S=Simulation Mode
N=Data Not Valid
<CR><LF>
2 ASCII control characters