User's Manual

Reference

TDS1000/2000-Series Digital Oscilloscope User Manual

Scan Mode Display (Roll Mode). When the SEC/DIV control is set to

100 ms/div or slower and the trigger mode is set to Auto, the

oscilloscope enters the scan acquisition mode. In this mode, the

waveform display updates from left to ri ght. There is no trigger or

horizontal position control of waveforms during scan mode.

Window Zone. Use the Window Zone option to define a segment of a

waveform to see more detail. The Window time base setting cannot

be set slower than the Main time base setting.

Main

time base

displayed

Window Zone

displayed

Vertical bars define Window Zone

Window. Expands the Window Zone to cove r the entire screen.

NOTE. When you change between the Main, Window Zone, and

Window views, the oscilloscope erases any waveform saved on the

screen through persistence.

Holdoff. Use holdoff to help stabilize the display of aperiodic

waveforms. Refer to Trigger Controls on page 99 for more

information.