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RC4000 Antenna Controller
Device Status Poll Command (continued)
byte 34
7 6 5 4
0 1 0 0 $ 0 A B C
.
byte 35
7 6 5 4
0 1 X X $ Y Z Z Z
Appendix REM
polarization limits -- binary data
3 2 1 0
A '0' in a bit position implies that the antenna is not at the limit, a
'1' in the bit position implies that the antenna is at the limit. Here
is the mapping of bit positions to the limits ...
A – Polarization Clockwise
B – Polarization Counterclockwise
C – Polarization Stow
polarization equipment and display status code – binary data
3 2 1 0
where 'XX' is ...
00 if a rotating feed is not present in the system
01 if a single port rotating feed is present in the system
10 if a dual port rotating feed is present in the system. A dual
port rotating feed can simultaneously receive both horizontally
and vertically polarized signals.
where 'Y' is ...
0 if polarization movements are not allowed.
1 if polarization movements are allowed.
Discussion – The 'Y' field described above only contains
meaningful data when TRACK mode is active. Polarization
movement is not allowed during a TRACK mode peaking
operation. If a polarization operation occurs while peaking the
antenna the peak obtained may not be reliable. If a 'go to' H or
V polarization command is received via the serial port the
controller will execute the command after the peaking operation
is completed. The reply to the 'go to' command will be an ACK.
A polarization jog command which is received during a peaking
operation will not be registered and executed later. The reply to
the command will be a NAK.
where 'ZZZ' is ...
000 if the 'H' polarization code is displayed
001 if the 'h' polarization code is displayed
010 if the 'V' polarization code is displayed
011 if the 'v' polarization code is displayed
100 if no polarization code is displayed
REM-11
Remote Control Option
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