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Figure 8.12 Duration Trigger Setting Menu

After a trigger type is selected, the current trigger setting information (including the

trigger type, source, and level) is displayed in the trigger information label at the top

of the screen, as shown in the figure below. The information will change based on the

trigger settings.

Source Selection

Click or tap the

Source drop-down button to select CH1-CH4. For details, refer to

Trigger Source

. The selected trigger source is indicated in the trigger information

label at the top of the screen.

Only when you select the channel that has signal inputs as the trigger source, can you

obtain a stable trigger.

Pattern Setting

The following three patterns are available:

• 1: sets the pattern of the channel selected to "1", i.e. the voltage level is higher

than the trigger level of the channel.

• 0: sets the pattern of the channel selected to "0", i.e. the voltage level is lower

than the trigger level of the channel.

• X: sets the pattern of the channel selected to "X", i.e. this channel is not used as a

part of the pattern. When all channels in the pattern are set to "X", the

oscilloscope will not trigger.

Triggering the Oscilloscope

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