Tektronix CSA7154, Руководство пользователя

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Triggering
CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual
3- 121
Overview Control elements and resources To trigger on a sequence (Cont.)
To set up b
triggering
1. To set the B Event trigger, from the toolbar, touch Trig,
and select the B Event tab of the Trigger control window.
2. To specify which channel becomes the B trigger source,
touch Source, and select the source from the list.
3. Coupling is the same as the A Trig coupling.
4. To specify the direction of the edge, touch Slope and
select Pos (positive) or Neg (negative) from the window:
H
Pos monitors positive-going edges.
H
Neg monitors negative-going edges.
5. To set the B trigger level, touch B Trig Level, and use
the multipurpose knob or keypad to set the level. Note:
you can also touch Set 50% to set the B trigger level to
the midpoint between the positive and negative peak of
the B trigger signal.
For further
assistance
6. Touch the Help button in the Trigger control window to
access the online assistance specific to triggering
commands.
See page 3--283 for information on online assistance