DR + GPS
STARTER KIT REFERENCE MANUAL
Lassen DR + GPS Reference Manual 107
The data in this message will change after initialization through fixes. To erase
altitude initialization information, use the corresponding set command with source
byte equal to zero (Invalid / Clear). To override current altitude estimate, use “host
override”.
Latitude and longitude initialization must be done before altitude initialization.
Table 83: 0x29-03: Altitude Initialization Report Message Byte Name Type Units/LSB Range / Value Meaning
Code U8 0x29
Subcode U8 0x03
0 0-2 Source U3 0
1
2
3
Invalid / Clear
Host Input
Host Override
GPS Fix
0 3 Newness U1 0
1
From BBRAM
New
0 4 Altitude Acc’y
Status
U1 0
1
Acc’y Unknown
Acc’y Valid
1-2 Altitude S16 1 m -400 – 10000 m MSL
3-4 Altitude Accuracy U16 1 m 0 – 10000 m 1-sigma accuracy