
NMEA Manual based on MediaTek chipset - Manual
Type Description
hhmmss.ddd
UTC time of the fix.
hh=hours; mm=minutes; ss=seconds; ddd=decimal part of seconds
xxmm.dddd
Latitude coordinate.
xx=degrees; mm=minutes; dddd=decimal part of minutes
<N/S> Character denoting either N=North or S=South.
yyymm.dddd
Longitude coordinate.
yyy=degrees; mm=minutes; dddd=decimal part of minutes
<E/W> Character denoting either E=East or W=West.
v
Fix valid indicator
1 = GPS fix (SPS)
2 = DGPS fix
3 = PPS fix
4 = Real Time Kinematic
5 = Float RTK
6 = estimated (dead reckoning) (2.3 feature)
7 = Manual input mode
8 = Simulation mode
s Number of satellites used in position fix, 0-12.
d.d HDOP - Horizontal Dilution Of Precision.
Altitude (mean-sea-level, geoid)
M Letter M.
g.g Difference between the WGS-84 reference ellipsoid surface and the mean-sea-level altitude.
M Letter M.
a.a
-
xxxx
-
1.2 GLL – Geographic Position – Latitude/Longitude
Latitude and Longitude, UTC time of fix and status.
Example:
$GPGLL,6012.5674,N,02449.6545,E,072022.000,A,A*50
Format:
$GPGLL,xxmm.dddd,<N|S>,yyymm.dddd,<E|W>,hhmmss.ddd,S,M*hh<CR><LF>
Type Description
xxmm.dddd
Latitude coordinate.
xx=degrees; mm=minutes; dddd=decimal part of minutes
<N|S> Character denoting either N=North or S=South.
yyymm.dddd
Longitude coordinate.
yyy=degrees; mm=minutes; dddd=decimal part of minutes
<E|W> Character denoting either E=East or W=West.
hhmmss.ddd
UTC time of the fix.
hh=hours; mm=minutes; ss=seconds; ddd=decimal part of seconds
S
Status indicator.
A=valid; V=invalid
M
Mode indicator.
A=autonomous; N=data not valid
1.5 RMC - Recommended Minimum Specific GNSS Data.
Time, date, position, course and speed data.
UBX-13003181 - R16 Early Production Information Page 6 of 41
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