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SHS800X&SHS1000X User Manual
74
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Window Trigger
Windows trigger provides a high trigger level and a low trigger level. The
instrument triggers when the input signal passes through the high trigger level or
the low trigger level.
There are two kinds of window types: Absolute and Relative. They have different
trigger level adjustment methods. Under Absolute window type, the lower and
the upper trigger levels can be adjusted respectively via the Level knob; under
Relative window type, adjust the Center value to set the window center; adjust
the Delta value to set the window range, 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
edge.
Suppose the upper trigger level is within the waveform amplitude range
while the lower trigger level is out of the waveform amplitude range. In that
case, the oscilloscope will trigger on rising edge only.
Suppose the lower trigger level is within the waveform amplitude range
while the upper trigger level is out of the waveform amplitude range. In that
case, the oscilloscope will trigger on falling edge only.
To set window trigger via Absolute window type:
1. Press the Trigger Setup button on the front panel to enter the TRIGGER
function menu.
2. Press the Type softkey; then use the Universal Knob to select Window and
push down the knob to confirm.
3. Press the Source softkey; turn the Universal Knob to select CH1 or CH2 as the
trigger source.
4. Press the Window Type softkey to select Absolute.
5. Press the Lower Upper softkey to select Lower or Upper trigger level; then
press the Trigger Level button and turn the Universal Knob to adjust the
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