MNC-0500-002
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Revision H
Amplifier Communication and Protocol, Octagon ISA CPU
Fault Reset
Command Byte
: 'B'
Function
: Resets any of the HPA's resetable faults.
Step Attenuator
Command Byte
: 'C'
Function
: Steps attenuator count up or down. The attenuator count is written to the D-
to-A converter that controls the attenuation. When this command is executed, the
change in attenuation is virtually instantaneous, permitting radical adjustments to output
power. Note that when high voltage is on, drastic attenuator changes may affect the life
of the TWT. A recommended alternative is to use a
Go To Power
command ('D' or 'E').
Parameter
: "+XXXX" steps. This is an integer preceded by '+' or '-'. This offset is
applied to the current attenuator count which ranges from 0 to 4095.
Note:
If direct attenuation control is required, most users will prefer command Set
Attenuator: (‘K’), which specifies attenuation in dB.
Compatibility
: Attenuator required.
Go To Power (dBW)
Command Byte
: 'D'
Function
: The HPA seeks the specified power level for 10 seconds.
Parameter
: The desired power level in "XX.X" dBW.
Compatibility
: Attenuator required.
Go To Power (Watts)
Command Byte
: 'E'
Function
: The HPA seeks the specified power level for 10 seconds.
Parameter
: The desired power level in "XXXX" Watts.
Compatibility
: Attenuator required.
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