RESEARCH CONCEPTS RC2000A DUAL AXIS Instructions Manual page 79

RC2000A Dual Axis Antenna Controller
0
0
0
0
0
0
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Bytes 34 and 35 contain signal strength information.
Byte 34 contains the least significant 5 bits of the signal strength and indicates which AGC
channel has the greatest signal strength.
7 6 5 4
0 c2 c1 L $ L L L L
- - - -
0 1
1 0
Byte 35 contains the most significant 5 bits of the signal strength.
7 6 5 4 3 2 1 0
0 x x M $ M M M M
- - - - - - - -
x x
1 0
The signal strength is a 10 bit value (0 to 1023) – M M M M M L L L L L where L L L L L
are the 5 least significant bits of byte 34 and M M M M M is the 5 least significant bits of
byte 35.
byte 36:
byte 37:
AUTO MOVE COMMAND
This command causes the controller to automatically position the antenna in either azimuth and
elevation and/or polarization. The command has 3 forms.
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1 0 0 1 9, Lost AGC Error.
during a peaking operation.
1 0 1 0 10, Peak Limit Error.
many steps looking for a peak (initially 4
steps).
1 0 1 1 11, AGC Timeout Error.
for PEAKUP HOLDOFF INTERVAL seconds and AGC
was not detected.
The following errors indicate that a remote
movement command (Az, El, or Pol) was received
by the controller while a peaking operation
was in progress.
1 1 0 0 12, Remote Auto Move occurred during a peaking
operation.
1 1 0 1 13, Remote Jog Command occurred during a
peaking operation.
1 1 1 0 14, Mode Change.
mode was changed during a peaking operation.
1 1 1 1 15, Invalid Peakup Params.
operation was specified but at least one of
the peakup related parameters in non-volatile
memory is corrupt.
3 2 1 0
- - - -
AGC channel 1 has the greatest signal strength
AGC channel 2 has the greatest signal strength
x x are reserved bits
initialized to 1 0 in this version of the
software
ETX
checksum
Appendix E Communications Protocol
Signal Strength was lost
The controller took too
The controller waited
The controller's operational
A peaking
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