NavCom LAND-PAK Rev.N - Manual (Page 61)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only
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0x4a - Vehicle Dynamics - 6 bytes
The functionality of this record is removed in version 3.0.45 and later software. Acceleration is
detected on an epoch-epoch Doppler estimation, valid to 6g’s. Tracking and loop bandwidth are
unaffected, regardless of the acceleration rate.
This data record has no current function, but is reserved for future use.
0x4a, allows a user to indicate the maximum acceleration the NCT-2100D may see. The default
value is 1g.
Record
Usage Command - Yes
Response - Yes Input: No longer used
Output: No longer used
Ref Message Field Description Data Type Units Range Scale
Byte
Count
STX 02 (hex) U08 1
PRA1 99 (hex) U08 1
PRA2 66 (hex) U08 1
ID 46 (hex) U08 1
Length 0x0006 U16 2
W1
Command Action
B1=1: Store in NVRAM
B2=2: Use ACK/NAK
B3=1: Use default values
U08 1
W2
Nominal maximum g seen by
receiver
0: Static or survey
1: Land/Sea 1g
U08 g 0 - 6 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1