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Figure 6-2
Apply to slow sweep mode to observe low-frequency signal, it’s recommend that set the channel coupling
mode to direct current.
Note：In ROLL mode, horizontal displacement, window extension, pass/fail test, parameter measurement,
recording waveform and waveform brightness cannot be used.
6.3 Window Extension
Window extension is used for magnifying a waveform to view the image detail. In horizontal menu, it can
open window extension or open it by press SCALE knob in the HORIZONTAL control area.
In window extension mode, screen will be divided into two display area as shown in Figure 6-3.
Figure 6-3
Before enlarged waveform
After enlarged waveform
Main timebase
Extend timebase
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