Description Of Fields - Leica GR30 Online Help Manual

$--GSA,a,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>

Description of fields

Field Description
$--GSA Header including talker ID
a Mode
M = Manual, forced to operate in 2D or 3D mode
A = Automatic, allowed to automatically change between 2D and 3D
x Mode
1 = Fix not available
2 = 2D
3 = 3D
xx Numbers of the satellites used in the solution. This field is repeated 12 times.
1 to 32 = PRN numbers of GPS satellites
33 to 64 = Numbers of WAAS and WAAS like satellites
65 to 96 = Slot numbers of GLONASS satellites
x.x PDOP
x.x HDOP
x.x VDOP
*hh Checksum
<CR>
Carriage Return
<LF>
Line Feed
GSA NMEA version 4.0 does not support BeiDou and Galileo.
Examples
Standard Talker ID
$GNGSA,A,3,01,11,14,17,19,20,24,28,,,,,1.5,0.9,1.2*26
$GNGSA,A,3,65,66,67,81,,,,,,,,,1.5,0.9,1.2*29
User defined Talker ID = GN
$GNGSA,A,3,01,11,14,17,19,20,23,24,28,,,,65,66,67,81,,,,,,,,,1.2,0.7,1.0*27
B10: GSV - GNSS Satellites in View
Syntax
$--GSV,x,x,xx,xx,xx,xxx,xx,.....*hh<CR><LF>
Description of fields
Field Description
$--GSV Header including talker ID
x Total number of messages, 1 to 4
Appendix B: NMEA Messages
253