Leica GR30 - Examples

Appendix B: NMEA Messages
249
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 = Real time position, ambiguities fixed
xx
Number of satellites in use, 00 to 26.
x.x
GDOP
EHT
Ellipsoidal height
x.x
Altitude of position marker as local ellipsoidal height. If the local ellipsoidal height is not
available, the WGS 1984 ellipsoidal height will be exported.
M
Units of altitude as fixed text M
*hh
Checksum
<CR>
Carriage Return
<LF>
Line Feed
Examples
Standard Talker ID
$GNGGK,113616.00,041006,4724.5248557,N,00937.1063064,E,3,12,1.7,EHT1171.742,M *6D
User defined Talker ID = GN
$GNGGK,113806.00,041006,4724.5248557,N,00937.1063064,E,3,13,1.4,EHT1171.746,M*66
B5: GGK-PT - Real time Position with DOP, Trimble Proprietary
Syntax
$PTNL,GGK,hhmmss.ss,mmddyy,llll.ll,a,yyyyy.yy,a,x,xx,x.x,EHTx.x,M*hh<CR><LF>
Description of fields
Field
Description
$PTNL
$ = Start of sentence delimiter, talker ID fixed with PTNL
GGK
GGK sentence formatter
hhmmss.ss
UTC time of position
mmddyy
UTC date
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 = Not existing
3 = Real time position, ambiguities fixed
4 = Real time position, ambiguities not fixed