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RC4000 Antenna Controller
3.21 Read Navigation Data Command
This command uploads the current values of navigation data.
byte 0
byte 1
byte 2
byte 3
byte 4
The reply to this command is as follows:
byte 0
byte 1
byte 2
byte 3
7 6 5 4
0 1 0 0 $ 0 X X X
bytes 4-9
bytes 10-12
bytes 13-19
bytes 20-22
bytes 23-28
Appendix REM
STX
A
RC4000 address
45h
Read Navigation Data command code
ETX
Checksum
ACK or NAK
address
45h
latitude/longitude source
3 2 1 0
where 'XXX' is ...
001 – currently no lat/lon data
010 – GPS
011 – Manually Entered
100 – User Preset Location List
101 – Saved Position
111 – Remotely Entered
latitude
dd.mm(N/S) format
reserved
spare bits for additional lat seconds data
set to blanks
longitude
ddd.mm(E/W) format
reserved
spare bits for additional lon seconds data
set to blanks
reserved
spare bits for altitude data
set to blanks
REM-36
Remote Control Option
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