Tektronix RSA2200A, User Manual

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Trigger
RSA2203A & RSA2208A User Manual
3- 91
Mode... Selects the trigger mode. The trigger mode determines whether to acquire
data with or without triggering.
H
Free Run. Acquires and displays the waveform without triggering. Press the
RUN/STOP key to start data acquisition. To stop the acquisition, press the
RUN/STOP key again.
H
Triggered. Set the trigger conditions (level, slope, and position) before
starting data acquisition by pressing the
RUN/STOP
key. When the trigger
occurs, data is acquired and displayed. To stop data acquisition when the
trigger does not occur, press the RUN/STOP key again.
Repeat...
Selects whether to acquire data continuously or singly.
H
Continuous. Repeatedly acquires and displays the waveform. Acquisition
data will be overwritten while waiting for a new trigger event. Use the Single
setting if you will need to examine or reanalyze the measurement results.
H
Single. Acquires and displays one waveform. After the first waveform
display, you must press RUN/STOP to acquire and display each waveform.
Table 3--9 shows the acquisition method with the trigger and repeat modes. The
concept is illustrated in Figure 3--71 on page 3--94.
Table 3- 9: How to acquire a waveform
Trigger mode
(TRIG ➝ Mode)
Repeat mode
(TRIG ➝ Repeat) Description
Free run Continuous Press RUN/STOP to acquire data repeatedly.
Press this key again to stop acquisition.
Single Press RUN/STOP to acquire one waveform.
Triggered Continuous Press RUN/STOP to acquire data every trigger
event.
Single Press RUN/STOP to acquire one waveform every
trigger event.