Agilent Technologies PSA Series Manual page 232

Front-Panel Key and SCPI Command Reference
Measurement keys
4.4.6.4.5 Trig Source
Displays menu keys that enable you to select the trigger mode of a measurement. When in a trigger mode other
than Free Run, the analyzer will begin the measurement only when the proper trigger condition is met. This key
is available only when PSA firmware revision A.11.08 or above, or Option 23A is installed. The following
trigger menu keys are available:
• Free Run (Immediate)
(also called Immediate).
- An internal IF envelope trigger that occurs at the absolute threshold level of the IF signal.
• Video (IF Envlp)
• RF Burst (IF Wideband)
signals. It triggers on a level that is relative to the peak of the signal passed by the RF or absolute level.
- Sets the trigger directly to an exrernal signal connected to the front-panel
• Ext Front
connector. No measurement will be made unless a signal is connected to the
connector on the front panel.
- Sets the trigger directly to an exrernal signal connected to the rear-panel
• Ext Rear
No measurement will be made unless a signal is connected to the
Key Path:
Remote Command:
Default:
State Saved:
Range:
Example:
232
- The next measurement is taken immediately, capturing the signal asynchronously
- An internal wideband RF burst trigger that has an automatic level control for burst
Meas Setup
[:SENSe]:PMDeviation:TRIGger:SOURce
IMMediate|IF|EXTernal[1]|EXTernal[2]|RFBurst
[:SENSe]:PMDeviation:TRIGger:SOURce?
IMMediate
Saved in instrument state.
Free Run (Immediate)|Video (IF Envlp)|RF Burst|Ext Front|Ext Rear
:PMD:TRIG:SOUR IF
:PMD:TRIG:SOUR?
EXT TRIGGER INPUT
EXT TRIGGER INPUT
TRIGGER IN
connector on the rear panel.
TRIGGER IN
connector.
Chapter 4