Trigger; Free Run Mode; Activate Video Trigger - Promax AE-166 User Manual

3.8

Trigger

The Trigger function sets the signal conditions upon which the spectrum
analyser triggers captured waveforms, including frequency, amplitude, and
delay. An external trigger signal, instead of the default internal signal, may be
used as required for special conditions.
The sections below can be used to skip to the relevant section:


Free Run Mode



Activate Video Trigger


Activate External Trigger

Selecting Trigger Mode

Set the Trigger Delay Time
3.8.1 Free Run Mode
Description
►
In free run mode all signals are captured and the trigger conditions are not
used.
Free Run Mode
►
Press
3.8.2 Activate Video Trigger
Description
►
Sets the video trigger level for video signals. When the video signal voltage
level exceeds* the video trigger level, a trigger signal will be generated.
Parameters
►

Video Edge: Determines the polarity of the video trigger.
Positive: The signal voltage exceeds the video level at the trigger
frequency.
Negative: The signal voltage is lower than the video level at the trigger
frequency.

Video Level: The trigger voltage level.

Trigger Frequency: Sets the frequency to start triggering.
*for positive video edge
February 2017
> Free Run[F1] to run in free mode.
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