Rohde & Schwarz URV5-Z4 - PEAK (PEP) Key Function

2.3.5
PEAK
(PIP)
Key
The
URVS
can
measure
the
peak
value
of
a
modulated
AC
voltage
present
at
the
probe.
The
measured
value
is
read
out
as
an
rms
value.
The
abbreviation
PEP
(=
peak
envelope
power)
is
used
in
transmit-
ter measurements and stands for the true power during one period
of
the
carrier
signal
at
the
maximum
momentary
value
of
the
modu-
lation
signal.
Therefore,
the
measured
value
ist
read
out
in
W
when
this
function
is
switched
on
(LED
in
PEAK
(PEP)
key
lights).
The
impe-
dance
value
entered
for
the
respective
measurement
channel
is
used
as
reference
impedance.
It
is
also
possible
to
select
an-
other
display
mode
by
means
of
keys
11
SEL
DIM
and
SEL
REL.
The
measured
value
is
however
always
read-out
as
rms
value
of
the
peak
value.
The
gate
time
effective
for
PEAK
measurement
can
be
adjusted
with
the
aid
of
the
FILTER
key
and
via
the
special
function
3
as
de-
scribed
in
section
2.3.8
and
basically
corresponds
to
the
mea-
surement
time
(see
Table
2-5).
The
gate
time
is
the
period
of
ob-
servation
during
which
the
peak
value
is
determined
and
is
fol-
lowed
by
an‘
automatic
restart
(internal
reset
of
the
peak-re-
sponding
meter).
Thus
the
gate
time
must
be
greater
than
1he
period
of
the
measured
signal.
This
function
is
not
effective
for
DC
measurements
(DC
probe)
and
the
key
is
not
evaluated
when
actuated.
Table
2-5
-
setting
with
FILTER
key
(F2/F4)
m
F1
'
p2
r3
r4
F5
+
gate
time
(filter)
setting
0.05/s
0.25/s
1/s
3.3/s
7/s
15/s
+
display
change
20
s
4.0
s
1
s
200
ms
40
ms
10ms
+
gate
time
20
s
4.1
s
1.1
s
300
ms
140
ms
60ms
+
measurement
time
(For
dual
channel
operation,
the
indicated
measurement
times
are
twice
as
long.)
395.0512.02
2.26
3-1
2.3.6
kam
(psp)
Key
l
The URV5
can
measure
the
peak
Value
of
a
modulated
AC voltage
present
at the
probe.
The
measured
Value is
read
out as an ums
Value.
The
abbreviation
PEP (=
peak
envelope
power)
is
used
in
transmit-
ter
measurements
and Stands for the
true
power
during one
period
of the
carrier
Signal at the
maximum
momentary
Value of the
modu-
lation
Signal.
Therefore,
the
measured
Value ist
read
out in w
Ehen
This
function is
switched
on
(LED
in PEAK
(PEP)
key lights). The
impe-
dance
Value
entered
for the
respective
measurement
Channel
is
used as reference
impedance.
It is also
possible
t`o
select
an-
other
display
mode
by ne
ans
of
Keys
11
SEL
DIN and SEL
REL.
The
measured
Value
is
however
always
read
out as
ums
Value
of
the
peak
Value.
This
function
is not effective fo; DC
measurements
the key is not
evaluated
Ehen
actuated.
The
gate time
effective
for
PEAK
measurement
Can
be
adjusted
Voith
the aid of the
FILTER
key and via the Special function 3 as
de-
scribed
in
section
2.3.8 and
basically
corresponds
to the
mea-
surement
time
(See
Table
2-5).
The
gate
time is the
period
of
ob-
servation
during
which
the
peak
Value
is
determined
and is
fol-
lowed
by an`
automatic
restart
(Internal
leset
of the
peak-re-
sponding
meter)
.
Thus
the
gate
time
must
be
greater
than
*he
period
of the
measured
Signal.
(DC
probe)
and
1
Table
2-5
-
Setting
Voith
FILTER
key
(F2/F4)
FØ
F1
0.05/S 0.25/s
20
s
4.0
s
20
s
4.1
s
F2
1/s
1s
1.1 s
F3
3.3/s
200
ms
300
ms
F4
7/s
40
ms
140
ms
F5
+
15/s
10ms
4-
+
60ıns
+
gate
time
(Filter)
Setting
display
Change
Gate
time
measurement
time
(For
dual
Channel
Operation,
twice
as
lang.)
the
indicated
measurement
times
are
395.0S12.02
2.26
E-1