Leica GR10 User Manual

Appendix B: NMEA Messages
373
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
Description
$--GGA
Header including Talker ID
hhmmss.ss
UTC time of position
llll.ll
Latitude (WGS 1984)
a
Hemisphere, North or South
yyyyy.yy
Longitude (WGS 1984)
a
East or West
x
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
xx
Number of satellites in use, 00 to 26.
x.x
HDOP
x.x
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.
M
Units of altitude as fixed text M
x.x
Geoidal separation in metres. This is the difference between the WGS 1984 earth ellipsoid
surface and mean sea level.
M
Units of geoidal separation as fixed text M
x.x
Age of differential GNSS data, empty when DGPS not used
xxxx
Differential reference station ID, 0000 to 1023
*hh
Checksum
<CR>
Carriage Return
<LF>
Line Feed
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

Leica GR10 Specifications

General

Brand	Leica
Model	GR10
Category	Receiver
Language	English