Agilent X-Series Signal Generators SCPI Command Reference 269
Arb Commands
Dmodulation Subsystem–N5172B/82B with Option 431 ([:SOURce]:RADio:DMODulation:ARB)
beginning. For a waveform sequence, this means to the beginning of the first
segment in the sequence.
*RST FREE
:TRIGger:TYPE:GATE
Supported N5172B/82B with Option 431
[:SOURce]:RADio:DMODulation:ARB:TRIGger:TYPE:GATE LOW|HIGH
[:SOURce]:RADio:DMODulation:ARB:TRIGger:TYPE:GATE?
This command selects the active state (gate polarity) of the gate while using the gating trigger mode.
The LOW and HIGH selections correspond to the low and high states of an external trigger signal.
For example, when you select HIGH, the active state occurs during the high of the trigger signal.
When the active state occurs, the X- Series signal generator starts the waveform playback at the last
played sample point, then stops the playback at the next sample point when the inactive state occurs.
For more information on triggering and to select gating as the trigger mode, see “:TRIGger:TYPE” on
page 267.
The following list describes the X- Series signal generator’s gating behavior for the polarity selections:
LOW The waveform playback starts when the trigger signal goes low (active state) and
stops when the trigger signal goes high (inactive state).
HIGH The waveform playback starts when the trigger signal goes high (active state) and
stops when the trigger signal goes low (inactive state).
*RST HIGH
Key Entry Gate Active Low High
:TRIGger[:SOURce]
Supported N5172B/82B with Option 431
[:SOURce]:RADio:DMODulation:ARB:TRIGger[:SOURce] KEY|EXT|BUS
[:SOURce]:RADio:DMODulation:ARB:TRIGger[:SOURce]?
This command sets the trigger source.
For more information on triggering, see “:TRIGger:TYPE” on page 267. The following list describes the
command choices:
KEY This choice enables manual triggering by pressing the front panel Trigger.
EXT An externally applied signal triggers the waveform. This is the only choice that
works with gating. The following conditions affect an external trigger:
• The input connector selected for the trigger signal. You have a choice between
the rear panel PATTERN TRIG IN connector or the PATT TRIG IN 2 pin on the
rear panel AUXILIARY I/O connector. To make the connector selection, see
“:TRIGger[:SOURce]:EXTernal[:SOURce]” on page 271.
For more information on the connectors and on connecting the cables, see the
User’s Guide.
Key Entry Free Run Trigger & Run Reset & Run
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