164 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
15 Measurements
 
Average
Average is the sum of the levels of the waveform samples divided by the number 
of samples.
Where x
i
 = value at ith point being measured, n = number of points in 
measurement interval.
The Full Screen measurement interval variation measures the value on all 
displayed data points.
The N Cycles measurement interval variation measures the value on an integral 
number of periods of the displayed signal. If less than three edges are present, the 
measurement shows "No edges".
The X cursors show what interval of the waveform is being measured.
DC RMS
DC RMS is the root-mean-square value of the waveform over one or more full 
periods.
Falling edge preshοot =
Base − D local Minimum
Amplitude
× 100
Preshoot
local Maximum
local Minimum
Base
Top
Preshoot