User`s guide

198 5000 Series Oscilloscope User’s Guide
4 Making Measurements
Overshoot and Preshoot Measurements
Preshoot
Preshoot is distortion that precedes a major edge transition
expressed as a percentage of Amplitude. The X cursors show
which edge is being measured (edge closest to the trigger
reference point).
Rising edge preshoot =
Base - D local Minimum
Amplitude
-----------------------------------------------------------
X 100
Falling edge preshoot =
local Maximum - D Top
Amplitude
----------------------------------------------------------
X 100
local Maximum
local Minimum
Preshoot
Preshoot
Top
Base