Operators Manual Owner manual

HDO6000 High Definition Oscilloscope

History Mode

History Mode allows you to review any acquisition saved in the oscilloscope's history buffer, which

automatically stores all acquisition records until full. Not only can individual acquisitions be restored to

the grid, you can "scroll" backward and forward through the history at varying speeds to capture individual

details or changes in the waveforms over time.

Each record is indexed and time-stamped, and you can choose to view the absolute time of acquisition or

the time relative to when you entered History Mode. In the latter case, the last acquisition is time zero,

and all others are stamped with a negative time. The maximum number of records stored depends on

your acquisition settings and the size of the oscilloscope memory.

To view history:

1. Press the Front Panel History Mode button, or choose Timebase > History Mode.

2. Select View History to enable the history display, and View Table to display the index of records.

Optionally, select to view Relative Times on the table.

3. Choose a single acquisition to view by entering its Index number on the dialog or selecting it from the

table of acquisitions. You can also use the Navigation buttons or the slider bar at the bottom of the

dialog to "scroll" the history of acquisitions.

l The top row of buttons scrolls continuously and are (left to right): Fast Backward, Slow Back-

ward, Pause, Slow Forward, Fast Forward.

l The bottom row of buttons steps one record at a time and are (left to right): Back to Start, Back

One, Go to Index (#), Forward One, Forward to End.

Entering History Mode automatically stops new acquisitions. To leave History Mode, press the Front

PanelHistory Mode button again or clear the View History checkbox on the History dialog. Restart

acquisition by pressing one of the Front Panel Trigger Mode buttons.

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