Tektronix TDS1000- Instrukcja Użytkownika Strona 124

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Reference
106
TDS1000/2000-Series Digital Oscilloscope User Manual
Trigger Frequency Readout
The oscilloscope counts the rate at which trigger events occur to
determine trigger frequency and di splays the frequency in the lower
right corner of the screen.
Key Points
Trigger When. The pulse width of the source must be 5 ns for the
oscilloscope to detect the pulse.
When options Details
= Triggers the oscilloscope when the signal pulse width is equal
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< Triggers the oscilloscope when the source signal pulse width is
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Tolerance
Tolerance
Triggers when pulse is
less than width setting
Triggers when pulse is
greater than width setting
Triggers when pulse is not
equal to width setting ± 5%
Triggers when pulse is equal
to width setting ± 5%
Threshold level
Threshold level
= Trigger point
Refer to page 60 for an example of triggering on aberrant pulses.
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