NavCom LAND-PAK Rev.N - Manual (Page 74)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 72
0x60 - LBM PVT Request block - 18 bytes
This block requests a message 0xcc and also acts as the heart beat for the LBM to NCT 2100D
interface. The Physical port that receives a message 0x60 will be set up as the LBM logical port
in NCT-2100D. If both an internal and external LBM exists (Not Recommended) the first
message 0x60 will define the unit used.
Record
Usage Command - Yes
Response - No
Input: sets the StarFire receiver port (logical) on the GPS engine
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 60 (hex) U08 1
Length 0x0012 U16 2
W1
Action Control
B2=1: Use Ack/Nak
U08 1
W2 Reserved (Message 0xd0.W5) U32 4
W3
Communication ID (Message
0xd0.W6)
U16 2
CKSM Checksum U08 1
ETX 03 (hex) U08 1
1. This block is output to request a PVT block, message 0xcc. PVT response is required.
2. 0x60 may be used to turn off internal LBM in NavCom newer SF series receivers.