DR + GPS
STARTER KIT REFERENCE MANUAL
Lassen DR + GPS Reference Manual 70
Table 36 shows the subcode, range, and default value for each of the GPS
configuration parameters. DGPS does not apply to all products. Products to
which DGPS does not apply have a default DGPS Mode of 1 (Ignore), and the
value cannot be changed.
Table 39: List of GPS Configuration Message Parameters
Subcode Name Type Units Range Default Meaning
0x01 Operating
Dimension
U8 0
3
4
0 Auto 2D/3D
Alt-Hold (2D)
Full Pos (3D)
0x02 DGPS Mode U8 0
1
2
1 Require
Ignore
If Available
0x03 Dynamics Code U8 17 17 Automobile
0x04 Elevation Mask FLT (degrees)
[0°, 90°] 5.0 Tracking limit
0x05 SNR Mask U16 0.2 dBHz [100, 240] =
[20, 48] dBHz
145 =
29 dBHz
Fix limit
0x06 DOP Mask FLT [0.0, 99.0] 20.0 Fix limit
0x07 DOP Switch FLT [0.0, 99.0] 20.0 Fix limit
0x08 DGPS Age
Limit
U16 1 s 0-240 30 Fix limit
0x25: Kalman Filter Configuration
The Parser Code for the Kalman Filter configuration parameters is 0x25. A
typical parameter report is shown in Error! Reference source not found.
Table 40: 0x25: Format of Kalman Filter Configuration Parameter
Byte Name Type Value Meaning
Code U8 0x25
Subcode U8 0x01-16 Parameter Subcode
0 Parameter Value Refer to Error! Reference source not found.
Error! Reference source not found. shows the subcode, range, and default
value for each of the Kalman Filter configuration parameters.