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Persist
When the Persist function is used, the persistence display effect of the picture
tube oscilloscope can be simulated: the reserved original data is displayed in fade
color and the new data is in bright color. Press the H2 button，the Persist menu
will display at the right of screen. Press the F1 button, different persistence time
can be chosen: OFF, 1second, 2second, 5second and Infinity. When the
"Infinity" option is set for Persist time, the measuring points will be stored till
the controlling value is changed (see Fig.5-34). By pressing the F2 button, the
persistence will be cleared.
User Manual of Smart Digital Storage Oscilloscope
Fig.5-31 Display in Dots form
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