Name: Rigol MSO4000 series
Brand: Rigol
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RIGOL Chapter 5 Trigger

5-20 MSO4000/DS4000 User’s Guide

Nth Edge Trigger

In Nth edge trigger, the oscilloscope triggers on the nth edge that appears after the

specified idle time.

For example, in the waveform as shown in the figure above, the idle time should

fulfill the following formula if the oscilloscope needs to trigger on the second rising

edge appears after the specified idle time.

MIdleTime3P2P1P ＜＜//

Wherein,

and

are the idle times participate in the counting;

IdleTime

the specified idle time.

Press MENU (in the trigger control area (TRIGGER) at the front panel)  Type, turn

the multi-function knob to select “Nth Edge” and press the knob. You can also

press Type continuously to switch to “Nth Edge” trigger.

At this point, the trigger setting information (include the trigger type, trigger source

and trigger level/threshold level, as shown in the figure below) is displayed at the

upper-right side of the screen and changes with the trigger setting.

Set the Nth edge trigger:

1. Specify the trigger source and adjust the trigger level/threshold level

1) Press Source to select CH1 to CH4 or D0 to D15 (please refer to “Trigger

Source”). The trigger source currently selected is displayed at the

upper-right side of the screen.

Note: Channels that are turned off can also be selected as the trigger

source.

2) Turn TRIGGER

LEVEL to adjust the trigger level (when the trigger

Edge Type: RisingEdge

Number of Edges: 2

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