Xicom XTU-400K, Operation And Installation Manual

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MNC-0500-002 28 of 36 Revision H
Amplifier Communication and Protocol, Octagon ISA CPU
Constant Power (dBW)
Command Byte : 'F'
Function : The HPA seeks the specified power level until Constant Power is terminated
by Goto Power (Command Byte ‘D’ or ‘E’) or Terminate Constant Power (Command
Byte ‘H’). Also called "Auto Gain Stabilization," the Constant Power (dBW) command
allows the user to operate an amplifier over extended periods of time while maintaining a
set power level. Constant Power Mode is intended to compensate for gain drift (due to
time or temperature).
Parameter : The desired power level in "XX.X" dBW.
Compatibility : Attenuator required.
Constant Power (Watts)
Command Byte : 'G'
Function : The HPA seeks the specified power level until Constant Power is terminated
by Goto Power (Command Byte ‘D’ or ‘E’) or Terminate Constant Power (Command
Byte ‘H’). Also called "Auto Gain Stabilization," the Constant Power (Watts) command
allows the user to operate an amplifier over extended periods of time while maintaining a
set power level. Constant Power Mode is intended to compensate for gain drift (due to
time or temperature).
Parameter : The desired power level in "XXXX" Watts.
Compatibility : Attenuator required.
Terminate Constant Power
Command Byte : 'H'
Function : If active, Constant Power Mode is terminated.
Compatibility : Attenuator required.
RF Inhibit
Command Byte : 'I'
Function : Inhibits RF drive to the TWT.
Compatibility : Attenuator required.