Keysight x-series Instruction Manual

8 Trigger
8.1 Trigger
Notes For some of the trigger parameters, the tie-in to the parameter is not obvious. These are:
IMMediate, selects Free Run
FRAMe , selects Periodic Trigger
FMT, selects Frequency Mask Trigger
AEXTernal, selects Audio External trigger, using the TRIG IN connector on the M9260A Audio
Analyzer module
For most measurements, the <measurement> keyword follows TRIGger. For Swept SA and RTSA
Modes, do not use the <measurement> keyword. Using the wrong command form will result in an
Undefined Header error
Other trigger-related commands are found in the :INITiate and :ABORt SCPI command
subsystems
*OPC should be used after requesting data. This will hold off any subsequent changes to the selected
trigger source, until after the sweep is completed and the data is returned
Available ranges and presets can vary from mode to mode
FMT (Pulse and RTSA apps):
The amplitude resolution of the Frequency Mask is coupled to the Scale/Division. There are 256
vertical points therefore the amplitude resolution is computed using the algorithm:
(10 * Scale/Div) / # Vertical Points
Dependencies Not all trigger sources are available for each input. See the "RF Trigger Source (Remote Command
Only)" on page 2325 and "I/Q Trigger Source (Remote Command Only)" on page 2327 commands for
detailed information on which trigger sources are available for each input
In some models, there is no second External input. In these models, the External 2 selection is not
shown and the EXTernal2 parameter will generate a “Hardware missing; Not available for this
model number” message
EXTernal3 is available only when Option H1G is installed
For the E7760 the only available selections are:
EXTernal1|IMMediate|INTernal|RFBurst|VIDeo
For UXM the only available selections are:
EXTernal1|IMMediate|PRTChandet|PRTFrame|PRTEvent
In the Pulse app, when Option B2X and H1G are installed and Digital IF BW is greater than 255.176
MHz, only three trigger sources, IMMediate, LEVel, and EXTernal3 are available
Level Trigger (Pulse and RTSA apps):
Level trigger is allowed in average detector mode
When Level Trigger is the selected Trigger Source in the Spectrum measurement, Spectrum minimum
Acquisition Time is limited to the PVT minimum Acquisition Time. If the Spectrum Acquisition Time
changed as a result of going into Level Trigger, a message is posted “Min Acq Time is 200 usec when
Level Trigger is ON”. When Level Trigger is no longer the selected Trigger Source, Spectrum minimum
Acquisition Time is restored
FMT (Pulse and RTSA apps):
If you were not in Free Run when you entered the FMT Setup View, you can change Trigger Source to
Free Run while in the editor. This will allow you to configure the mask with a continually updating
trace. When exiting FMT Setup View, the Trigger Source will be changed back to FMT
Short Range Comms & IoT Mode User's &Programmer's Reference 2322

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)