Tektronix TDS 200-Series, Руководство пользователя

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Reference
84
TDS 200-Series Digital Oscilloscope User Manual
Key Points
Normal and Auto Mode. Use Normal trigger mode to trigger only on a
valid trigger. Use Auto trigger mode to let the acquisition free-run in
the absence of a valid trigger. Auto allows an untriggered, scanning
waveform at 100 ms/div or slower time base settings.
Single Mode. Use Single trigger mode to capture a single acquisition
of an event. The content of a single acquisition sequence depends on
the acquisition mode.
Acquisition Mode Single Acquisition Sequence
Sample or Peak Detect Sequence is complete when one acquisition is
acquired
Average Sequence is complete when the defined number
of acquisitions is reached (refer to page 66)
EXT and EXT/5 Source (TDS 210 and TDS 220 Only). The EXT trigger
source uses the signal connected to the EXT TRIG connector. The
EXT/5 trigger source uses the signal connected to the EXT TRIG
connector and divides it by 5; this extends the trigger level range.
AC Line Source. The AC Line trigger source uses the power signal as
the trigger source. Trigger coupling is set to DC and the trigger level
to 0 volts.