IBM G- MR G-Mouse GPS Receiver G-Mouse MR User Manual
Page 13

G-Mouse GPS Receiver User Manual
Page 12
Value
Description
3
GPS PPS Mode fix valid
A.1.2 Geographic Position - Latitude/Longitude (GLL)
Samples:
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C
Table 1-4 GLL Data Format
Name
Example
Units
Description
Message ID
$GPGLL
GLL protocol header
Latitude
3723.2475
dd mm.mmmm
N/S Indicator
N
N = north or S = south
Longitude
12158.3416
ddd mm.mmmm
E/W Indicator
W
E = east or W = west
UTC Position
161229.487
hh mm ss.sss
Status
A
A = data valid or V = data not valid
Checksum
*2C
A.1.3 GNSS DOP and Active Satellites (GSA)
Samples:
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33
Table A-5 GSA Data Format
Name
Example
Units
Description
Message ID
$GPGSA
GSA protocol header
Mode 1
A
See Table 4-6
Mode 2
3
See Table 4-7
Satellite Used *1
07
SV on Channel 1
Satellite Used *1
SV on Channel 2
… ..
… ...
Satellite Used *1
SV on Channel N
PDOP
1.8
Position Dilution of Precision
HDOP
1.0
Horizontal Dilution of Precision
VDOP
1.5
Vertical Dilution of Precision
Checksum
*33
*1 Satellite used in solution.
Table A-6 Mode 1
Value
Description
M
Manual – forced to operate in 2D or 3D mode
3
Automatic – allowed to automatically switch 2D/3D
Table A-6 Mode 2
Value
Description
1
Fix Not Available
2
2D
3
3D
A.1.4 GNSS Satellites In View (GSV)
Samples: