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for the Zoom window. You can also click or tap the input field to input the

specific value directly via the pop-up numeric keypad.

When the Zoom mode is enabled, the display divides in half, as shown in the figure

below.

Waveform before Expansion

Waveform after Expansion

Zoomed Time Base

Main Time Base

Zoomed Position

Figure 6.2 Zoom Mode

• Waveform before expansion:

The upper portion of the display that is not covered by subtransparent gray

shows the normal display of the waveform. Its horizontal time base (called the

main time base) is indicated in the label at the upper-left corner of the display.

You can move the area left and right by adjusting the horizontal position and

increase or decrease the size of the area by adjusting the horizontal scale.

• Waveform after expansion:

The lower portion shows the horizontally expanded version of the normal

waveform display. Its horizontal time base (called the zoomed time base) is

displayed in the middle. Compared with the main time base, the zoomed time

base has higher resolution.

TIP

The zoomed time base should be smaller than or equal to the main time base.

Horizontal System

Rigol DHO914 User Manual

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