Measure
an
Amplifier
with
High
Input
Lev
els
Figure
10-3
sho
ws
the
setup
for
measuremen
t
of
an
amplier
with
ab out
20
dB
of
gain
that
needs
an
input
lev
el
of
ab out
40
dBm.
A
40
dB
gain
amplier
is
installed
in
the
rear
panel
POR
T
1
links
to
b o ost
the
signal
lev
el
to
the
desired
v
alue
without
exceeding
+43
dBm
(20
w
atts).
The
signal
lev
el
at
the
test
p ort
is
ab out
+60
dBm,
making
the
signal
lev
els
at
the
a1
mixer
and
the
b1
mixer
o
v
er
+30
dBm.
In
order
to
a
v
oid
damage:
The
A
TTENUA
TOR
POR
T
1:
attenuator
m
ust
b e
set
to
30
dB
in
order
to
reduce
the
a1
and
b1
signal
lev
els
to
b elow
010
dBm;
On
the
transmission
return
side,
the
amplier
output
is
ab out
60
dBm,
making
it
necessary
to
add
20
dB
of
loss
b et
w
een
it
and
P
ort
2
in
order
to
reduce
the
signal
lev
el
inciden
t
at
P
ort
2
to
less
than
+43
dBm
for
the
HP
85110A,
and
+47
dBm
for
the
HP
85110L;
The
A
TTENUA
TOR
POR
T
2:
step
attenuator
m
ust
b e
set
to
30
dB
in
order
to
protect
the
b2
mixer;
and
The
rev
erse
p ole
of
the
forward/reverse
switch
m
ust
b e
protected
b
y
installing
an
attenuator
or
isolator
in
the
rear
panel
POR
T
2
links
to
reduce
the
signal
lev
el
at
the
rev
erse
p ole
of
the
switch
to
b elow
+20
dBm.
The
coupler
is
used
in
the
transmission
return
signal
path
b ecause
it
pro
vides
the
necessary
loss
and
will
probably
pro
vide
a
more
stable
signal
path
than
a
high
p o
w
er
attenuator
that
w
ould
otherwise
b e
required.
A
high
p o
w
er
termination
is
required
to
terminate
the
through
arm
of
the
coupler.
Use
these
examples
as
a
guide
for
considerations
that
are
sp ecial
to
y
our
test
setup.
Figure
10-3.
Measuring
an
Amplifier
with
High
Input
Lev
els
10-4
High
P
o
w
er
Measurements
Summary of Contents for 8510
Page 5: ......
Page 12: ...Figure 1 1 HP 8510 Pulsed RF Network Analyzer System Introduction 1 3 ...
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Page 17: ...Figure 2 2 HP 85110A S Parameter Test Set Signal Flow 2 4 System Description ...
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Page 27: ...Figure 5 1 System Cable Connections 5 2 Operating the HP 8510 for Pulsed RF Measurements ...
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Page 72: ...Figure 11 1 Option 008 Domain Stimulus and System Menus Reference Data 11 5 ...
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