Dawn CONTROL-1500A Manual page 84

Remote controlled antenna controller for single axis antennas
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CONTROL-1500B Single Axis Antenna Controller
byte 34:
7
6
-
-
0
c1 c0 $
a
a
-
-
byte 35:
7
6
-
-
0
1
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph (248) 391-9200 • Fax (248) 391-9207 • sales@DAWNco.com
1 1
s s s s
- - - -
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
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.
5
$
4
3
2
1
-
-
-
-
-
a
a
a
a
where
c1 c0
-- --
0 1
1 0
a
a
a
-
-
-
the least five significant bits of the agc input level on the channel
specified by c1 and c0 above.
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.
5
$
4
3
2
1
-
-
-
-
-
p
a
a
a
a
where
p
-
0
1
Discussion - The 'p' 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 during peaking 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
Appendix E
l band
track mode not active
track setup submode active
track auto mode entry
step track submode active
track search submode active
program track submode active
track jammed error
track limit error
track drive error
track peak limit error
track azim scale factor error
track geo position error
track system error
track checksum error
0
-
a
meaning
agc channel one has the greater input level
agc channel two has the greater input level
0
-
a
meaning
polarization movements are not allowed
polarization movements are allowed
Communications Protocol
77

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