Tektronix CSA7404B, Руководство пользователя

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Triggering
3- 88
CSA7000B Series & TDS7000B Series Instruments User Manual
Overview Control elements and resources Trigger based on pulse width (Cont.)
Set to trigger
when
To set the range of widths (in units of time) the trigger source
will search for and to specify whether to trigger on pulses that
are outside this range or within this range, do the following
steps:
5. Touch Pulse Width, and select from the list:
H
Inside triggers on pulses that fall within the
specified range.
H
Outside triggers on pulses that are outside the
range.
6. To set the range of pulse widths in units of time, touch
Upper or Lower Limit, and enter the values with the
multipurpose knob or keypad:
H
Upper Limit is the maximum valid pulse width the
trigger source will look for.
H
Lower Limit is the minimum valid pulse width. The
instrument will always force the Lower Limit to be
less than or equal to the Upper Limit.
Set the level 7. Touch Level, and use the multipurpose knob or keypad
to set the trigger level.
Logic qualify
the trigger
8. To logic qualify the trigger, see Logic Qualify a Trigger
on page 3--102.
To set mode
and holdoff
9. Mode and holdoff can be set for all standard trigger
types.
See To set holdoff on page 3--74 and To select the
trigger mode on page 3--71 for mode and holdoff
setup. To learn more about trigger mode and
holdoff, see Trigger Modes on page 3--65 and
Trigger Holdoff on page 3--66.