User Manual

Teledyne LeCroy
History Mode in WaveSurfer 3000 Oscilloscopes
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History Mode is best accessed directly from the front panel (it also is available in the Timebase drop-down menu);
pressing the History button stops the trigger and quickly displays a list of previously captured waveforms
alongside the waveform grid. The History Mode dialog box is shown in Figure 2.
Figure 2: Upon invoking the History Mode option by pressing the front-panel button, users are
presented with the controls dialog at the bottom of the screen. Checking both View History and
View Table brings up the History Mode table seen at top left. History Mode saves and shows all
acquisitions automatically with the time at which they were acquired.
Navigation within History Mode
The History Mode table is interactive in that tapping any line within the table automatically brings up that
acquisition. Thus, by scrolling up or down the table, users have direct access to any acquisition. This can be
accomplished either by manipulating the front-panel adjustment knob, or by using the Waveform History
Navigation section of the History Mode dialog box.
The Waveform History Navigation controls provide a flexible means of traveling backward and forward through
the mass of acquisitions stored in memory. Shown in Figure 3, the Waveform History Navigation controls offers
slow scrolling, fast scrolling, single stepping, and a second scroll bar.
Figure 3: Within the Waveform History Navigation section of the History
Mode dialog box is a full range of controls to move backward and forward
through the acquisition history.