User Manual

Waveform Analysis
R&S
®
Scope Rider RTH
78User Manual 1326.1578.02 ─ 08
Meas. type Symbol Description Graphic / formula Source
Crest factor Crest The crest factor is also known as peak-
to-average ratio. It is the maximum value
divided by the RMS value of the dis-
played waveform.
RMS
||Max
Crest
k
x

analog, math,
reference
Standard deviation
σ
Standard deviation of the displayed
waveform.
 





N
k
k
x
N
1
2
Mean
1
1
σ
analog, math,
reference
Minimum Min Minimum value within the displayed
waveform.
Min
analog, math,
reference
Maximum Max Maximum value within the displayed
waveform.
Max
analog, math,
reference
Peak to peak Pk-Pk Difference of maximum and minimum
values.
Max
Min
Pk-Pk
analog, math,
reference
Base level Base Low level of the displayed waveform -
the lower maximum of the sample distri-
bution. The measurement requires at
least one complete period of the signal.
Base
analog, math,
reference
Top level Top High level of the displayed waveform -
the upper maximum of the sample distri-
bution. The measurement requires at
least one complete period of the signal.
Top
analog, math,
reference
Amplitude Amp Difference between the top level and the
base level of the signal. The measure-
ment requires at least one complete
period of the signal.
Top
Base
Amplitude
analog, math,
reference
Overshoot Over
in %
Overshoot of a square wave after a ris-
ing or falling edge. It is calculated from
measurement values top level, base
level, local maximum, local minimum,
and amplitude.
%100
Amplitude
TopMax
Over
local



%100
Amplitude
Min Base
Over
local



Top
Base
Amplitude
Over+
Over-
analog, math,
reference
Automatic Measurements