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Measurements
R&S
®
RTB2000
102User Manual 1333.1611.02 ─ 03
7.2.2.1 Horizontal Measurements (Time)
Meas. type Symbol Description Graphic / formula
Frequency f
in Hz
Frequency of the signal, reciprocal value of the measured
first period.
T
f = 1 / T
50%
Period T
in s
Time of the first period, measured on the 50% level. The
measurement requires at least one complete period of the
signal.
T
50%
Duty cycle + Dty+
in %
Width of the first positive pulse in relation to the period in %.
The measurement requires at least one complete period of
the signal.
Dty+ = t+ / T * 100%
100%0% T
t+
Duty cycle - Dty-
in %
Width of the first negative pulse in relation to the period in
%. The measurement requires at least one complete period
of the signal.
Dty- = t- / T * 100%
100%0% T
t-
Rise time tr
in s
Rise time of the first rising edge, the time it takes the signal
to rise from the 10% level to the 90% level.
90%
10%
Rise
Fall time tf
in s
Fall time of the first falling edge, the time it takes the signal
to fall from the 90% level to the 10% level.
90%
10%
Fall
Positive pulse
width
PW+
in s
Duration of the first positive pulse: time between a rising
edge and the following falling edge measured on the 50%
level.
50%
t+
Negative pulse
width
PW-
in s
Duration of the first negative pulse: time between a falling
edge and the following rising edge measured on the 50%
level.
50%
t-
Automatic Measurements
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