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12.
MA
GNITUDE
RA
TIO/PHASE
FREQUENCY
RESPONSE
TEST
(NA)
Description
This
test
applies
the
RF
OUT
signal
to
the
4395A
R
input
and
either
the
A
or
B
input
through
a
p o
w
er
splitter.
It
then
measures
the
magnitude
ratio
and
phase
of
the
A/R
and
B/R
measuremen
ts.
The
magnitude
ratio
frequency
resp onse
is
measured
as
the
deviation
from
the
ideal
magnitude
ratio
v
alue
of
0
dB.
The
phase
frequency
resp onse
is
measured
as
the
deviation
from
linear
phase.
Specification
Magnitude
ratio
accuracy
(A/R,
B/R)
@010
dBm
input,input
att.=
10
dB,F
req.
100
Hz,IF
BW
3
kHz,
23 65
C
:
:
<62
dB
Phase
frequency
resp onse
(Deviation
from
Linear
Phase)
(A/R,
B/R)
@010
dBm
input,input
att.=
10
dB,F
req.
100
Hz,IF
BW
3
kHz,
23 65
C
:
:
:
<
612
T
est
Equipment
Tw
o-W
a
y
P
o
w
er
Splitter
:
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11667A
T
yp e-N
Cable,
61
cm
(tw
o
required)
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11500B
or
part
of
11851B
N(m)-N(m)
adapter
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PN
1250-1475
Procedure
1.
Press
4
Meas
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ANALYZER
TYPE
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NETWORK
ANALYZER
,
4
Preset
5
to
initialize
the
4395A.
Then
set
the
con
trols
as
follo
ws:
Con
trol
Settings
Key
Strok
es
Statistics:
ON
4
Utilit
y
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
STATISTICS
on
OFF
(Then
the
softkey
lab
el
c
hanges
to
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
STATISTICS
ON
off
.)
Dual
Channel:
On
4
Displa
y
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DUAL
CHAN
on
OFF
(Then
the
softk
ey
lab
el
c
hanges
to
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DUAL
CHAN
ON
off
.
Source
P
o
w
er:
04
dBm
4
Source
5,
NNNNNNNNNNNNNNNNN
POWER
,
4
-
5,
4
4
5,
4
x1
5
IF
BW:
1
kHz
4
Bw/Avg
5,
NNNNNNNNNNNNNNNNN
IF
BW
,
4
1
5,
4
k/m
5
Input
A
tten
uator
R:
10
dB
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR
MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN
R
4
1
5,
4
0
5,
4
x1
5
Input
A
tten
uator
A:
10
dB
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR
MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN
A
4
1
5,
4
0
5,
4
x1
5
Input
A
tten
uator
B:
10
dB
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR
MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN
B
4
1
5,
4
0
5,
4
x1
5
2.
|A/R
Magnitude
Ratio/Phase
F
requency
Resp onse
T
est|
a.
Connect
the
test
equipmen
t
as
sho
wn
in
setup
1
of
Figure
2-18.
P
erformance
T
ests
2-45
Summary of Contents for 4395A
Page 10: ......
Page 26: ......
Page 34: ......
Page 77: ...Figure 2 17 B R Magnitude Ratio Phase Dynamic Accuracy Test Setup 2 Performance Tests 2 43 ...
Page 167: ...Figure 5 1 Adjustment Hardware Setup Adjustments 5 5 ...
Page 186: ...Figure 5 13 Receiver Gain Adjustment Location 5 24 Adjustments ...
Page 190: ...Figure 5 16 Receiver Flatness Adjustment Setup 1 MHz 5 28 Adjustments ...
Page 194: ...Figure 5 20 DC Bias Adjustment Setup 2 5 32 Adjustments ...
Page 196: ...Figure 6 1 Troubleshooting Organization 6 2 Troubleshooting ...
Page 206: ...Figure 7 1 Power Supply Lines Simplified Block Diagram 7 2 Power Supply Troubleshooting ...
Page 212: ...Figure 7 5 A1 CPU Connector Locations 7 8 Power Supply Troubleshooting ...
Page 220: ...Figure 8 1 Digital Control Group Simplified Block Diagram 8 2 Digital Control Troubleshooting ...
Page 240: ...Figure 10 1 Top View Major Assemblies 10 4 Replaceable Parts ...
Page 292: ...Table A 2 Manual Changes by Firmware Version Version Make Manual Changes A 2 Manual Changes ...
Page 308: ......
Page 311: ...Figure B 1 Power Cable Supplied Power Requirement B 3 ...
Page 312: ......
Page 342: ......