Alc:source:external:coupling; Alc:source:pmservo:increment; Alc:source:pmservo:maximum - Agilent Technologies N5171B Command Reference Manual

Basic Function Commands
Power Subsystem ([:SOURce]:POWer)
Leveling Mode
Key Entry

:ALC:SOURce:EXTernal:COUPling

Supported All Models
[:SOURce]:POWer:ALC:SOURce:EXTernal:COUPling <value>DB
[:SOURce]:POWer:ALC:SOURce:EXTernal:COUPling?
This command sets the external detector coupling factor. Use this command when DIODe is the
selected ALC source (Refer to the :ALC:SOURce command.)
Example
:POW:ALC:SOUR:EXT:COUP 20DB
The preceding example sets the external coupling factor to 20 dB.
*RST +1.60000000E+001
200 to 200 dB.
Range
Key Entry Ext Detector Coupling Factor

:ALC:SOURce:PMServo:INCRement

Supported All Models
[:SOURce]:POWer:ALC:SOURce:PMServo:INCRement <value>
[:SOURce]:POWer:ALC:SOURce:PMServo:INCRement?
This command sets the increment percentage of a measured power delta in the Power Meter Servo
mode. By default this value is 100%, meaning that the system output power is adjusted by the
measured value. This percentage can be lowered to assure that no overshoot takes place – at the cost
of additional measurement/adjustment cycles. This command works in conjunction with the STARt
and STOP commands.
Example
:POW:ALC:SOUR:PMS:INCR 75
The preceding example sets the power increment to 75% of the measured delta.
*RST 100
Range 10 to 100 in %
Power Meter Servo overshoot protection power increment
Key Entry

:ALC:SOURce:PMServo:MAXimum

Supported All Models
[:SOURce]:POWer:ALC:SOURce:PMServo:MAXimum <value>
[:SOURce]:POWer:ALC:SOURce:PMServo:MAXimum?
This command adds device power protection by setting an RF output power protection limit while
using the Power Meter Servo mode. The system restricts the actual RF output power to this value and
will show UNLEVELED if the desired output power exceeds the value.
70 Agilent X-Series Signal Generators SCPI Command Reference