Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.12 List Sweep Measurement (Remote Only)
Remote Command
[:SENSe]:LIST:TRIGger:SOURce EXTernal1 | EXTernal2 | IMMediate | BUS
[:SENSe]:LIST:TRIGger:SOURce?
Example
LIST:TRIG:SOUR EXT2
Remote Command
Notes
EXTernal1|2: external sources
IMMediate: free run
BUS: software controlled trigger
The BUS trigger is only in “List Sweep”. It specifies a common trigger source which allows a source
and a receiver (analyzer) to coordinate triggering without requiring the connection of the trigger in
and trigger out ports on the rear panels of the instruments.
Dependencies If the list trigger source is set to BUS for all points, you need a trigger for each list item after the first.
For example, if there are three points in the list, you get the first point on the INIT and then have to
send *TRG two times to execute the complete List Sweep measurement.
If the list trigger source is not set to BUS, use *TRG or TRIG:IMM to start the list measurement.
Preset IMMediate
State Saved Saved in instrument state
Status Bits/OPC
Dependencies
The trigger bit is set and cleared at each measurement point.
The Status Operation Register bit “Waiting for Trigger” is set at the time when a new list point
measurement is initiated. It is cleared when the trigger actually occurs (i.e. after the trigger event
occurs and all the applicable trigger criteria have been met).
While the Trigger bit is set/unset along with each triggering condition at each point, the Measurement
bit is set once when the first point measurement is initiated. It is cleared only after all points
measurement in the list are complete. The only exception is when list trigger setting is BUS, see
details above
Remote Command
[:SENSe]:LIST:TRIGger:SOURce:POINts?
Example
LIST:TRIG:SOUR:POIN?
Remote Command
Notes
Only one trigger source selection is allowed.
3.12.3.12 Trigger Holdoff
Sets the holdoff time between triggers. When the trigger condition is satisfied, the
trigger occurs, the delay begins, and the holdoff time begins. New trigger conditions
are ignored until the holdoff time expires. For a free-running trigger, the holdoff
value is the minimum time between triggers.
Remote Command
[:SENSe]:LIST:TRIGger:HOLDoff <time>
[:SENSe]:LIST:TRIGger:HOLDoff?
Example
LIST:TRIG:HOLD 100MS
Spectrum Analyzer Mode User's &Programmer's Reference 1943

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)