50n
50n
75n 75n
c::[]
50n
11852A
:::::5.7
dB Loss
75n
75n
c::[]
50n
Model
8754A
50n
Incident
H"'+---~
50n
Test
75n
16.7n
50n
11850A
:::::
9.5
dB Loss Each Path
H"'+---~
75n
Test
75n
c=[]
50n
11852A
:::::5.7
dB loss
o--~\IV"Ir--........---vvo._----Q
50n
RF Input
50n
11850B
:::::
7.8 dB Loss Each Path
o-----~-.JVV\~~
75n
75n
c::[]
50n
RF Input
50n
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11850A/B
Three-Way Power Spl
itter
8502A
Transmission/Reflection
Test
Set
Transmission/Reflection Test Set.
The
8502A (50n)
or
8502B (75n).
Transmission/Reflection
Test Set contains a
power splitter
and
directional bridge allowing transmission
and
reflection measurements using
the
same test setup. It
also incorporates a 0
to
70 dB,
10
dB step
attenuator
to
reduce
the
incident signal level
without
affecting the signal
level
at
the R
input.
The
8502B includes one 11852A
50n
to
75n
Minimum
Loss
Pad
for matchir:g
the
75n Test
output
to
the 8754A
50n,
B input.
The
11851A
RF
Cable Set consisting
of
three 610
mm
(24")
cables phase
matched
to
±4
degrees
and
one 860
mm
(34'
')
cable
is
recommended for use with the
8502. This cable set
or
its equivalent
is
required
to
perform
phase calibration.
The
equal length cables connect the 8754A
RF, R;
and
A inputs
to
the
test set
and
the
longer cable serves
as the transmission
return
to
the B
input.
4
S-Parameter Test Set. Transmission and reflection measurements
on
two
port
devices wh.ich require
measurement
of
both
forward
and
reverse characteristics can be accomplished using
the
8748A
S-Parameter
Test Set. This test set contains
the
necessary splitter, couplers, and switches
to
measure forward and reverse
characteristics
without
disconnecting
the
reversing
the
test device, a 0
to
70 dB, 10 dB step
attenuator
to
control
the
incident signal level, and includes
the
necessary equal length signal cables and interface cable
to
connect the test set
to
the
8754A. Connect
the
test device using
the
11857A Test Port Extension Cables
or
the
11608A, 11600B,
or
11602B Transistor Fixtures.
Measurement Accessories
Several test set,-, signal cable sets,
and
other
measurement accessories are designed especially for use with
the 8754A.
Power Splitter.
For
precision transmission measurements,
use the 11850A (50n)
or
11850B (75n) Three
Way
Power
Splitter
and
the 11851 A
RF
Cable Kit.
One
output
port
provides the reference signal
and
.the
other
two ports can be
used for independent transmission measurements.
The
11850B includes three 11852A 50n
to
75n
Minimum
Loss
Pads
for matching the
75n
11850B
outputs
to
the 8754A 50n,
R, A,
and
B inputs.
Instrument Description
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