Research Concepts RC2000C - Manual (Page 96)

88 RC2000C Az/El Tracking Antenna Controller Appendix E Communications Protocol
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b1 b0 meaning
0 0 c band
0 1 k band
1 1 l band
s s s s
- - - -
0 0 0 0
track mode not active
0 0 0 1 track setup submode active
0 0 1 0 track auto mode entry
0 0 1 1 step track submode active
0 1 0 0 track search submode active
0 1 0 1 program track submode active
1 0 0 0 track jammed error
1 0 0 1 track limit error
1 0 1 0 track drive error
1 0 1 1 track peak limit error
1 1 0 0 track azim scale factor error
1 1 0 1 track geo position error
1 1 1 0 track system error
1 1 1 1 track checksum error
byte 34: AGC (automatic gain control) input channel (1 or 2) which has the greater
signal and the five least significant bits of the agc input level on that channel.
7 6 5 $ 4 3 2 1 0
- - - - - - - -
0 c1 c0 $ a a a a a
where
c1 c0
meaning
0 1 agc channel one has the greater input level
1 0 agc channel two has the greater input level
a a a a a
- - - - -
the least five significant bits of the agc input level on the
channel specified by c1 and c0 above.
byte 35: This byte indicates the status of the flag that specifies whether or not remote
polarization commands will be accepted when TRACK mode is active and the
five most significant bits of the agc input level.
7 6 5 $ 4 3 2 1 0
- - - - - - - -
0 1 p a a a a a
where
p
meaning
-
0
polarization movements are not allowed
1 polarization movements are allowed
Discussion - The 'p' field described above only contains
meaningful data when TRACK mode is active.