ST2276
Scientech Technologies Pvt. Ltd.
37
$GPGRS :
GPS Range Residuals
Example : $GPGRS, 024603.00, 1,-1.8, -2.7, 0.3,,,,,,*6C
Field
Example
Comment
Sentence ID
$GPGRS
UTC Time
024603.00
UTC time of associated GGA fix
Mode
1
0 = Residuals used in GGA, 1 = residuals calculated
after GGA
Sat 1 residual
- 1.8
Residual (meters) of satellite 1 in solution
Sat 2 residual
- 2.7
The order matches the PRN numbers in the GSA
sentence
Sat 3 residual
0.3
Sat 4 residual
Unused entries are blank
Sat 5 residual
Sat 6 residual
Sat 7 residual
Sat 8 residual
Sat 9 residual
Sat 10 residual
Sat 11 residual
Sat 12 residual
Checksum
*6C
$GPGSA :
GPS DOP and active satellites
Eg 1. $GPGSA, A, 3, 16, 18, 24, 3.6, 2.1, 2.2*3C
Eg2. $GPGSA, A, 3, 19, 28,14,18,27, 22, 31, 39, 1.7, 1.0, 1.3*34
1 = Mode :
M = Manual, forced to operate in 2D or 3D
A=Automatic, 3D/2D
2= Mode :
1 = Fix not available
2 = 2D
3 = 3D
3 - 14 = PRN's of Satellite Vehicles (SV's) used in position fix (null for unused fields)
15 = Position Dilution of Precision (PDOP)
16 = Horizontal Dilution of Precision (HDOP)
17 = Vertical Dilution of Precision (VDOP)
HiK-Consulting