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• Level B: only adjusts the lower limit of the trigger level, and the upper limit of the
trigger level remains unchanged.
• Level AB: adjusts the upper and lower limits of the trigger level at the same time,
and the trigger level deviation (the difference between the upper limit and lower
limit of the trigger level) remains unchanged.
NOTE
In MIL-STD-1553 trigger, pressing the Trigger LEVEL knob can quickly switch the current
level adjustment type.
Rotate the Trigger
LEVEL knob to adjust the corresponding trigger level. During
the adjustment of trigger level, two trigger level lines appear on the screen, and they
move up and down with the change of the trigger level. At the same time, the real-
time trigger level and slope information is displayed at the lower-left corner of the
screen (As shown in the figure below, H indicates the upper limit of the trigger level, L
indicates the lower limit of the trigger level, and â–³ indicates the trigger level
deviation). When you stopping modifying the trigger level, the trigger level line and
the trigger level information at the lower-left corner of the screen disappear in about
2 s. The current trigger level deviation is displayed at the upper-right corner of the
screen.
Polarity:
Press More > Polarity continuously to select the desired polarity. The polarities
available are positive polarity ( ) and negative polarity ( ).
Trigger Mode:
In the trigger control area (Trigger) on the front panel, press
to quickly switch
the current trigger mode. For details, refer to descriptions in "
Trigger Mode
".
Trigger Parameter Setting:
Sets the trigger parameter (noise rejection) under this trigger type. For details, refer
to descriptions in "
Noise Rejection
".
8.8 Zone Trigger
This series oscilloscope supports the zone trigger and provides two rectangle areas:
Trigger zone A and Trigger zone B. You can set the trigger conditions to "Intersect" or
To Trigger the Oscilloscope
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