Keysight x-series Programmer's Reference

3 VMA Mode
3.4 IQ Waveform Measurement
Example Put instrument into Single measurement operation:
:INIT:CONT 0
:INIT:CONT OFF
Put instrument into Continuous measurement operation:
:INIT:CONT 1
:INIT:CONT ON
Preset
ON
Note that :SYST:PRES sets :INIT:CONT to ON, but *RST sets :INIT:CONT to OFF
State Saved Saved in instrument state
Annunciation The Single/Continuous icon in the Meas Bar changes depending on the setting:
–
A line with an arrow is Single
–
A loop with an arrow is Continuous
Backwards
Compatibility
Notes
X-Series A-models had Single and Cont hardkeys in place of the SweepSingleCont softkey. In the X-
Series A-models, if in single measurement, the Cont hardkey (and INIT:CONT ON) switched to
continuous measurement, but never restarted a measurement and never reset a sweep
X-Series B-models have a Cont/Single toggle control instead of Single and Cont hardkeys, but it is still
true that, if in single measurement, the Cont/Single toggle control never restarts a measurement and
never resets a sweep
More Information
Continuous
Mode
The instrument takes repetitive sweeps, averages, measurements, etc., when in
continuous mode. If in average or Max/Min Hold, and the average/hold count
reaches the Average/Hold Num, the count stops incrementing, but the instrument
keeps sweeping
See the Trace key description under Trace Average for the averaging formula used
both before and after the Average/Hold Num is reached. The trigger condition
must be met prior to each sweep
The type of trace processing for multiple sweeps is set under the Trace key, with
choices of TraceAverage, Max Hold, or Min Hold
Single Mode The instrument takes a single sweep when in Single mode, or if in average or
Max/Min Hold, or if there is a Waterfall window displayed, it takes multiple sweeps
until the average/hold count reaches the Average/Hold Num, then the count stops
incrementing, and the instrument stops sweeping
See the Trace key description under Trace Average for the averaging formula used.
The trigger condition must be met prior to the sweep
The type of trace processing for multiple sweeps is set under the Trace key, with
choices of TraceAverage, Max Hold, or Min Hold
If the instrument is in Single measurement mode, pressing the Cont/Single toggle
control does not zero the count and does not cause the sweep to be reset; the only
action is to put the instrument into Continuous measurement operation.
787 Vector Modulation Analyzer Mode User's &Programmer's Reference

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)