Measurements
R&S
®
RTB2000
138
User Manual 1333.1611.02 ─ 11
Meas. type
Symbol
Description
Graphic / formula
σ
-Std. Dev. Cycle
σ
-Cyc
Standard deviation of one cycle, usually of the first, left-most
signal period.
N T
σ
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
7.2.2.3
Counting
Meas. type
Symbol
Description
Graphic / formula
Positive Pulse
CntP+
Number of positive pulses on the display. The mean value of
the signal is determined. If the signal passes the mean
value, an edge is counted. A positive pulse is counted if a
rising edge and a following falling edge are detected.
N
3
2
1
Negative Pulse
CntP-
Number of negative pulses on the display. The mean value
of the signal is determined. If the signal passes the mean
value, an edge is counted. A negative pulse is counted if a
falling edge and a following rising edge are detected.
N
3
2
1
Positive Slope
CntS+
Number of rising edges on the display. The instrument
determines the mean value of the signal and counts an
edge every time the signal passes the mean value in the
specified direction.
N
3
2
1
Negative Slope
CntS-
Number of falling edges on the display. The instrument
determines the mean value of the signal and counts an
edge every time the signal passes the mean value in the
specified direction.
N
3
2
1
7.2.3
Settings for automatic measurements
► To open the "Measure" menu, press the [Meas] key.
Automatic measurements