NavCom LAND-PAK Rev.N - Manual (Page 88)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 86
0x78 - Network Information (request) - 6 bytes
Message 0x78 is a block used to request Network information to be compiled by NCT-2100D
and provided to the user. It uses a sub-ID located in W2 to determine requested information.
(The standard block request process using Message 0x20 does not support this Command.)
The message length determines if the block is a request or a response. A request message is
always 6 bytes. Note that the response time may be a few seconds while the information is
gathered.
Network List (0x01) - Request for network list.
Record
Usage Command - Yes
Response - Yes Input:
Output:
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 78 (hex) U08 1
Length 0x0006 U16 2
W1
Command Action
B2: ACK/NAK
U08 1
W2 0x01: Sub-ID U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1
RTK Base Location Query (0x02). This query, when entered into a RTK rover, will return the
location of the base presently being used for RTK navigation.
Request for RTK Base Location.
Record
Usage Command - Yes
Response - Yes Input:
Output:
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 78 (hex) U08 1
Length 0x0006 U16 2
W1
Command Action
B2: ACK/NAK
U08 1
W2 0x02: Sub-ID U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1