User manual

WaveSurfer 3000/3000z Oscilloscopes Operator's Manual
Note: Analog patterns always assume a logical "And" when combined with any digital
pattern. Both conditions must be true for the trigger to fire.
4. To set a Time Condition in which the pattern must occur once the trigger is armed, choose the
operator:
l Less Than to trigger only if the pattern occurs before the time set.
l Greater Than to trigger only if the pattern occurs after the time set.
l In Range to set a time window in which the pattern must occur.
l Out Range to se a time window outside which the pattern must occur.
5. Open the Levels dialog and select a Logic Family for each digital bank from which you've selected
lines. To set a custom threshold, choose Logic Family User Defined, then enter the Threshold
voltage.
6. For analog channels, enter the threshold voltage for each channel in the pattern separately.
TV Trigger
TV triggers on a specified line and field in standard (PAL, SECAM, NTSC, HDTV) or custom composite
video signals.
1. Choose the Source signal input.
2. Choose the signal TV Standard. To use a custom signal, also enter the Frame Rate , # of Fields per
line, # of Lines, and Interlace ratio.
3. Choose the Line and Field upon which to trigger.
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