Agilent X-Series Signal Generators SCPI Command Reference 71
Basic Function Commands
Power Subsystem ([:SOURce]:POWer)
Example
:POW:ALC:SOUR:PMS:MAX 10 dBm
The preceding example limits the RF output power to a maximum of 10 dBm when in Power Meter
Servo mode.
*RST 30 dBm
Range MIN to MAX RF output power of the system (option dependent)
Key Entry Power Meter Servo mode RF Output power limit
:ALC:SOURce:PMServo:STARt
Supported All Models
[:SOURce]:POWer:ALC:SOURce:PMServo:STARt <value>
[:SOURce]:POWer:ALC:SOURce:PMServo:STARt?
This command sets the relative initial power when leveling with the Power Meter Servo mode. The
default of 0 dB means that the system starts with the power it thinks is needed (based on output
power, offset and reference) but this might lead to power overshoots in certain cases (especially when
the offset is not set up correctly). This value allows to specify an additional safe- margin to start the
measure/adjust cycles lower than the target power to protect the device from power overshoots. This
command works in conjunction with the INCrement and STOP commands.
Example
:POW:ALC:SOUR:PMS:STAR -3 dB
The preceding example sets the relative initial power for power meter servo approach to - 3 dB.
*RST 0 dB
Range ï€50 to 0 dB.
Key Entry Power Meter Servo overshoot protection relative start power
:ALC:SOURce:PMServo:STOP
Supported All Models
[:SOURce]:POWer:ALC:SOURce:PMServo:STOP <value>
[:SOURce]:POWer:ALC:SOURce:PMServo:STOP?
This command sets the final threshold for when the remaining measured power delta from the Power
Meter Servo mode will be applied in full (100%) instead of the specified increment. This command
works in conjunction with the STARt and INCrement commands.
Example
:POW:ALC:SOUR:PMS:STOP 3 dB
The preceding example sets the threshold from when on Power Meter Servo mode incremental
iterations stop and the remaining power is adjusted in one jump to the size of the 3 dB.
*RST 1 dB
Range 0 to 50 dB.
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