numeric keypad. You can also use the corresponding multipurpose knob to set
the values.
Trigger Mode
In Sweep, select Auto, Normal, or Single as the trigger mode. For details, refer to
Trigger Mode
.
Trigger Parameter Setting
You can refer to
Trigger Holdoff
and
Noise Rejection
to set the trigger holdoff and
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.
• Level A:
Click or tap the input field of
Level A to input the level of Source A with the pop-
up numeric keypad. You can also use the corresponding multipurpose knob or
trigger level knob to set the value. For details, refer to descriptions in
Trigger
Level
. The current trigger level is displayed in the trigger information label at the
top of the screen.
• Level B:
Click or tap the input field of
Level B to input the level of Source B with the pop-
up numeric keypad. You can also use the corresponding multipurpose knob or
trigger level knob to set the value. For details, refer to descriptions in
Trigger
Level
. The current trigger level is displayed in the trigger information label at the
top of the screen.
8.7.12 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.
Triggering the Oscilloscope
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HDO1000 User Guide
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