Oscilloscope Reference Vertical Acquisition Window considerations
As you vary vertical offset, the middle voltage level moves relative to zero. This moves the vertical
acquisition window up and down on the waveform. With input signals that are smaller than the
window, it appears the waveform moves in the window. Actually, a larger signal shows what really
happens: the offset moves the middle of the v ertical acquisition window up and down on the input
signal. The next figure shows how offset moves the acquisition window to control the portion of
the wavef
orm amplitude the window captures.
Applying a negative offset m oves the vertical range down relative to the DC level of the input signal.
Likewis
e, applying a positive offset moves the vertical range up. See the following illustration.
Wh
at do you want to do next?
Learn about horizontal acquisition window considerations. (see page 684)
Learn about setting offset. (see page 487)
DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series 683
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