NavCom LAND-PAK Rev.N - Manual (Page 75)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only
73
0x6d - CMR Wrapper block - Variable Length
CMR wrapper block will be accepted as a NCT formatted message in lieu of an actual CMR
input message stream.
Record
Usage Command - No
Response - Yes
Input:
Output: Used with CMR corrections from the IOP to the GPS engine. This
message identifies the contents as CMR corrections to the GPS engine, for
appropriate processing
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 6d (hex) U08 1
Length 0x00xx U16 2
Wn1 CMR message string U08[] 1[]
CKSM Checksum U08 1
ETX 03 (hex) U08 1
0x6d only functions when CMR(in) is set to the Null Port.
Block does not support ACK/NAK. However, if the block is rejected due to Note a,
then a NAK is sent. No ACK is ever sent.