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6. Touch the Sync to select the synchronization mode for the input signal:
15.5.6 Window Trigger
Window trigger is similar to edge trigger, except that it provides an upper and a lower
trigger level. The instrument triggers when the input signal passes through the upper
level or the lower level.
There are two kinds of window types: Absolute and Relative. They have different trigger
level adjustment methods. Under the Absolute window type, the lower and the upper
trigger levels can be adjusted separately. The relative window provides adjustment for
the Center value to set the window center and a Delta value to set the window range. In
this mode, the lower and the upper trigger levels always move together.
•
If the lower and the upper trigger levels are both within the waveform amplitude
range, the oscilloscope will trigger on both rising and falling edges.
•
If the upper trigger level is within the waveform amplitude range while the lower
trigger level is out of the waveform amplitude range, the oscilloscope will trigger on
the rising edge only.
•
If the lower trigger level is within the waveform amplitude range while the upper
trigger level is out of the waveform amplitude range, the oscilloscope will trigger on
the falling edge only.
To set window trigger via the Absolute window type
Refer to "Adjust Upper/Lower Level" in the section " Slope Trigger".
1.800.561.8187
a) Select the "Any" mode, and the signal can be triggered on any line that
meets the trigger condition.
b) Select the "Select" mode, then set the specified line and the specified field
to trigger the signal. Assuming that the "Field" is set to 8, you can select any
field from 1 to 8, and each field can choose any line from 1 to 100.
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T3DSO2000A Manual. Page 62
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