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To Use the History Function
The history function can record the waveforms of the input channels before pressing the
Run/Stop button. In the run state, the oscilloscope records input waveform continually;
when the memory becomes full (reaches the maximal frame), the new acquisitions will
replace the old acquisitions keeping the latest versions.
To use the History function, the HORIZONTAL Format must be set to YT.
Do the following steps to record and replay waveform:
1. Press the History button on the front to enable the History function.
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of every frame. It is displayed and accurate to the microseconds range.
3. Press the Frame softkey; then turn the Universal Knob to select the acquisition frame
to display.
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When in run state, the waveform will enter the stop state.
When in stop state, and then enable the History function, the oscilloscope will
remain in the stop state.
Press History and STOP button to turn off History function.
Press the
List softkey to turn on or off the list display. The list records the timestamp
The format of the Frame is A/B; A is the frame number that displaying on the screen
and B is the maximal frame number you can set.
The maximum frame number is determined by the current sampling point (Cur
value) and sampling rate.
When pressing the Run/Stop button or enable the history function, the maximum
number of acquisition frames may not be reached because the memory is not
filled. Therefore, in order to reach the maximum number of frames, please allow
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Figure 102: History
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