Triggers
R&S
®
RTE
268User Manual 1326.1032.02 ─ 20
Trigger mode
Sets the trigger mode which determines the behavior of the instrument if no trigger
occurs. The current setting is shown on the trigger label on top of the signal bar.
To toggle quickly between "Auto" and "Normal" mode, use the [MODE] key on the front
panel (in "Trigger" section).
"Auto"
The instrument triggers repeatedly after a time interval if the trigger
conditions are not fulfilled. If a real trigger occurs, it takes prece-
dence. This mode helps to see the waveform even before the trigger
conditions are set correctly. The waveform on the screen is not
synchronized, and successive waveforms are not triggered at the
same point of the waveform. The time interval depends on the time
base settings.
"Normal"
The instrument acquires a waveform only if a trigger occurs, that is, if
all trigger conditions are fulfilled. If no trigger occurs, no waveform is
acquired and the last acquired waveform is displayed. If no waveform
was captured before, none is displayed.
When no trigger has been found for longer than one second, a mes-
sage box appears that shows the time elapsed since the last trigger.
"Free run"
The instrument starts acquisition immediately and triggers after a
short time interval independent of the time base settings and faster
than in "Auto" mode. Real triggers are ignored. Use this mode if the
"Auto" mode is too slow.
Remote command:
TRIGger<m>:MODE on page 1206
Average count (N-single count)
Access:
●
TRIGGER > "Control" tab > "Average count (N-single count)"
●
[ACQUISITION] > "Average count (N-single count)"
●
[HORIZONTAL] > "Fast Segmentation" tab > disable "Acquire maximum" >
"Required"
●
[MATH] > "Setup" tab > "Mode" is not "Off" > "Average count"
The acquisition and average count has several effects:
●
It sets the number of waveforms acquired with [RUN N× SINGLE]
●
It defines the number of waveforms used to calculate the average waveform.
Thus, the instrument acquires sufficient waveforms to calculate the correct average
if "Average" is enabled for waveform arithmetic. The higher the value is, the better
the noise is reduced.
●
It sets the number of acquisitions to be acquired in a fast segmentation acquisition
series. Thus, you can acquire exactly one fast segmentation acquisition series with
[RUN N× SINGLE].
If fast segmentation is enabled and configured to acquire the maximum number of
acquisitions, the acquisition count is set to that maximum number and cannot be
changed.
See also: "Number of acquisitions" on page 184.
●
It is the "Finished" criteria for the state of a mask test.
Remote command:
ACQuire:COUNt on page 1115
Control / action
To Next Page
Loading...
