B3: Gga - Global Positioning System Fix Data - Leica GR10 Operational Manual

B3: GGA - Global Positioning System Fix Data

Syntax
$--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>
Description of fields
Field
$--GGA
hhmmss.ss
llll.ll
a
yyyyy.yy
a
x
xx
x.x
x.x
M
x.x
M
x.x
xxxx
*hh
<CR>
<LF>
Examples
User defined Talker ID = GN
$GNGGA,113805.50,4724.5248541,N,00937.1063044,E,4,13,0.7,1171.281,M,-703.398,M,0.26,0000*42
Description
Header including Talker ID
UTC time of position
Latitude (WGS 1984)
Hemisphere, North or South
Longitude (WGS 1984)
East or West
Position quality indicator
0 = Fix not available or invalid
1 = No real time position, navigation fix
2 = Real time position, ambiguities not fixed
3 = Valid fix for GNSS Precise Positioning Service mode, for example WAAS
4 = Real time position, ambiguities fixed
Number of satellites in use, 00 to 26.
HDOP
Altitude of position marker above/below mean sea level in metres. If no orthometric
height is available the local ellipsoidal height will be exported. If the local ellipsoidal height is
not available either, the WGS 1984 ellipsoidal height will be exported.
Units of altitude as fixed text M
Geoidal separation in metres. This is the difference between the WGS 1984 earth ellipsoid
surface and mean sea level.
Units of geoidal separation as fixed text M
Age of differential GNSS data, empty when DGPS not used
Differential reference station ID, 0000 to 1023
Checksum
Carriage Return
Line Feed
Appendix B: NMEA Messages
373