Nth Edge Trigger; Figure 8.22 Nth Edge Trigger - Rigol DHO924S User Manual

8.7.12
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Trigger Parameter Setting
Trigger Holdoff
You can refer to
noise rejection under this trigger type.
Level Selection and Setting
After the trigger condition setting is completed, you need to adjust the trigger level
to correctly trigger the signal and obtain a stable waveform.
Click or tap the Level A/Level B input field to set the level A/level B with the pop-up
numeric keypad. You can also use the corresponding multipurpose knob to adjust
level A/level B or use the trigger level knob to adjust the level (the focus of the trigger
level knob is the last modified level). For details, refer to descriptions in
The current trigger level is displayed in the trigger information label at the top of the
screen.

Nth Edge Trigger

The Nth edge trigger lets you to trigger on the Nth edge that occurs after a specified
idle time. For example, in the waveform as shown in the figure below, the instrument
should trigger on the second rising edge after the specified idle time (the time
between two neighboring rising edges), and the idle time should be within the range
between P and M (P < Idle Time < M). Wherein, M is the time between the first rising
edge and its previous rising edge; P is the maximum time between the rising edges
that participate in counting.
P<Idle Time<M
Trigger Type
Click or tap the Type drop-down button to select "Nth Edge".
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15
10 20
5 25
0 30
Noise Rejection
and
M

Figure 8.22 Nth Edge Trigger

to set the trigger holdoff and
Trigger Level
Edge Type=
Edge Num=2
P
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