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Threshold
The Threshold allows you to set the voltage threshold for the trigger.
To precisely position the trigger point, input the value in the Threshold field in the
trigger settings dialog box.
To roughly position the trigger point, drag the trigger point to a desired position.
To configure the trigger settings
1. Tap the right column of the Trigger button to open the trigger settings dialog
box.
2. Select the trigger mode, trigger channel and pulse direction in the dropdown
list.
3. Input the value in the Threshold field in the trigger settings dialog box.
4. Tap Done to save settings or tap Cancel to exit without saving.
Buffer
The waveform buffer shows which signal waveform is displayed on the current screen
and how many signal waveforms are captured and stored in the buffer memory.
Figure 9-142 Buffer Screen
The device can capture and store waveforms. You can select a waveform from the
waveform buffer by tapping the Previous or Next button.
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