Teledyne LeCroy WavePro 7 Zi_Zi-A - Manual (Page 66)

WavePro 7 Zi/Zi-A Oscilloscopes
58 922137-00 Rev A

Flatness - Flat group delay compensation with a brick-wall frequency
response. While this provides the fastest rise time, there is also a
slight penalty of more preshoot and overshoot compared to Eye
Diagram mode. This selection is most often used in narrow-band
RF measurements where it is desired to maintain constant
magnitude response over the oscilloscope passband.
Trigger
Overview
Triggering is the way an oscilloscope selects an exact moment in time on a
signal to then be shown on the screen. If the pattern of a signal happens to
be repetitive, a continuous waveform pattern is inherently visible on the
display.
But without a regular signal pattern, the oscilloscope requires controls to
determine what specific point in time (when a trigger is met) to show the
signal on the display. This is accomplished and affected in a variety of ways.
Some trigger settings allow for pre-trigger, post-trigger, and a delay
between the time of the trigger event and the time when the display is
refreshed (or sweeped) and the waveform is again shown on the screen.
The instrument uses many waveform capture techniques that trigger on
features and conditions that you define. These triggers fall into the
following major categories:

Simple Triggers - activated by basic waveform features or conditions
such as a positive or negative slope, and hold‐off