Rigol DS1102/4B User Manual page 79

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surveyed. More data (14div) of pre-trigger and 1s delayed trigger can be
surveyed by adjusting the horizontal knob.
This feature is very useful to study the events that led up to the trigger point.
Everything on the right of the trigger point is called post-trigger information. The
delay range (pre-trigger and post-trigger information) depends on the sweep
speed selected.
3. Adjustable trigger sensitivity
To avoid the influence of noise from the physical world, and get the stable trigger,
the trigger circuit has adopted Stickiness. In DS1000B series, the stickiness is
adjustable from 0.1div-1.0div, which means when it sets to 1.0div; the trigger
circuit will not affect any signal with peak-peak amplitude less than 1.0div, so as
to avoid the influence of the noise.
© 2008 RIGOL Technologies, Inc. 2-51
User's Guide for DS1000B Series