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Triggering the Oscilloscope
•
< >: triggers when the time difference (∆T) between the specified edges of
Source A and Source B is greater than the lower limit of the preset time and
smaller than the upper limit of the preset time. Click or tap the input field of
Upper to set the delay time upper limit in Delay trigger with the pop-up numeric
keypad. Click or tap the input field of Lower to set the delay time lower limit in
Delay trigger with the pop-up numeric keypad. You can also use the
corresponding multipurpose knob to set the upper and lower limit. The lower
time limit must be smaller than the upper time limit.
•
> <: triggers when the time difference (∆T) between the specified edges of
Source A and Source B is smaller than the lower limit of the preset time or
greater than the upper limit of the preset time. Click or tap the input field of
Upper to set the delay time upper limit in Delay trigger with the pop-up numeric
keypad. Click or tap the input field of Lower to set the delay time lower limit in
Delay trigger with the pop-up numeric keypad. You can also use the
corresponding multipurpose knob to set the upper and lower limit. The lower
time limit must be smaller than the upper time limit.
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
Level
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
Level
top of the screen.
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
noise rejection under this trigger type.
HDO4000 User Guide
96
. The current trigger level is displayed in the trigger information label at the
. The current trigger level is displayed in the trigger information label at the
.
Trigger Holdoff
and
Noise Rejection
to set the trigger holdoff and
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Trigger
Trigger
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