Keysight E6640A, Measurement Applications User & Programmer Reference

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8 Channel Power Measurement
Cont (Continuous Measurement/Sweep)
Cont (Continuous Measurement/Sweep)
Sets the analyzer for Continuous measurement operation. The single/continuous state is Meas Global so
the setting will affect all measurements. If you are Paused, pressing Cont does a Resume.
Key Path
Front-panel key
Remote Command :INITiate:CONTinuous OFF|ON|0|1
:INITiate:CONTinuous?
Example :INIT:CONT 0 puts analyzer in Single measurement operation.
:INIT:CONT 1 puts analyzer in Continuous measurement operation
Preset ON
(Note that SYST:PRESet sets INIT:CONT to ON but *RST sets INIT:CONT to OFF)
State Saved Saved in instrument state
Backwards Compatibility
Notes For Spectrum Analysis mode in ESA and PSA, there is no Cont hardkey, instead there is a Sweep
Single/Cont key. In these analyzers, switching the Sweep Single/Cont key from Single to Cont
restarts averages (displayed average count reset to 1), but does not restart Max Hold and Min Hold.
The X-Series has Single and Cont keys in place of the SweepSingleCont key. In the X-Series, if in
single measurement, the Cont key (and INIT:CONT ON ) switches to continuous measurement, but
never restarts a measurement and never resets a sweep.
Initial S/W Revision Prior to A.02.00
In Swept SA Measurement (Spectrum Analysis Mode):
The analyzer takes repetitive sweeps, averages, measurements, etc., when in Continuous mode. When
the average count reaches the Average/Hold Number the count stops incrementing, but the analyzer
keeps sweeping. See the Trace/Detector section for the averaging formula used both before and after the
Average/Hold Number 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/Detector key, with choices of Trace Average, Max
Hold, or Min Hold.
In Other Measurements/Modes:
With Avg/Hold Num (in the Meas Setup menu) set to Off or set to On with a value of 1, a sweep is taken
after the trigger condition is met; and the analyzer continues to take new sweeps after the current sweep
has completed and the trigger condition is again met. However, with Avg/Hold Num set to On with a value
>1, multiple sweeps (data acquisitions) are taken for the measurement. The trigger condition must be met
prior to each sweep. The sweep is not stopped when the average count k equals the number N set for
Avg/Hold Num is reached, but the number k stops incrementing. A measurement average usually applies
to all traces, marker results, and numeric results. But sometimes it only applies to the numeric results.
If the analyzer is in Single measurement, pressing the Cont key does not change k and does not cause the
sweep to be reset; the only action is to put the analyzer into Continuous measurement operation.
If it is already in continuous sweep:
the INIT:CONT 1 command has no effect
374 W-CDMA & HSPA Measurement Applications Reference