Rohde & Schwarz URV5-Z4 - Page 30

2.
Modulated
RP
voltages:
Pig.
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2-8
Amplitude-modulated
RF
voltage
PEAK
(PEP)
measurement
(<
100
Hz)
The PEAK (PEP) measurement can always be carried out up to
modulation
frequencies
of
about
.100
Hz
without
causing
a
significant
additional
error.
This
holds
true
for
any
permissible
input
voltage.
PEAK (pap) measurement (> 100 Hz, < 1 v (1o V))
At
higher
modulation
frequencies,
a
value
is
obtained
which
is
between
the
true
rms
(peak)
value
and
the
“normal"
rms
(average)
value
depending
on
the
modulation
frequency
Measuring
head
characteristic
At
voltages
>
1
v
(10
V),
the
influence
of
the
measuring
head
characteristic
is
predominant
so
that
there
is
only
little
difference
from
the
PEAR
(PEP)
measurement.
394.801o.oz
2.28
2-2—
2.
Hodulated RF voltagesz
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Fig. 2-8
Amplitude-modulated RF voltage
-
PBAK (PEP) measurement (< 100 Hz)
The PEAK (PEP) measurement Can always be carríed out up
modulation frequencies of about 100 Hz without causing
significant additional error.
Co
.
a
This holds true for any permíssíble Input voltage.
-
PEAK (PEP) measurement (› 100 Hz, < 1 v (10 V))
At high er modulation frequencies, a Value is obtained which
is between the true ums (peak) Value and the "normal" ums
(average) Value depending on the modulation frequency
-
Heasuríng head characteristic
At voltages › 1 v (10 V), the influence of the
measuring
head characteristic is predominant so that there is only
little difference fror the PBAK (PEP) measurement.
394.a0ı0.02
2.28
E-2