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T
able
2-20.
Input
A
ttenuator
Switching
Uncertainty
T
est
Settings
4395A
Step
A
tten
uator
Input
A
tten
uator
Reference
Lev
el
0
dB
040
dBm
50
dB
20
dB
020
dBm
30
dB
30
dB
010
dBm
20
dB
40
dB
0
dBm
10
dB
50
dB
10
dBm
0
dB
d.
Set
the
step
attenuator
to
the
rst
setting
50
dB
listed
in
the
third
column
of
T
able
2-20.
e.
P
erform
the
follo
wing
steps.
i.
Press
4
T
rigger
5,
NNNNNNNNNNNNNNNNNNNN
SINGLE
to
make
a
sw
eep.
W
ait
for
the
completion
of
the
sw
eep.
ii.
Press
4
Search
5,
NNNNNNNNNNN
MAX
.
iii.
Record
the
delta
marker
reading
in
the
calculation
sheet
(\4395A
Reading"
column).
f.
Change
the
4395A
input
attenuator
setting,
the
reference
lev
el
setting,
and
the
step
attenuator
setting
in
accordance
with
T
able
2-20 .
Repeat
step
8-e
for
eac
h
setting.
9.
Remo
v
e
the
xed
attenuation
from
the
R
input,
and
connect
it
to
the
A
input.
10.
Press
4
Meas
5,
NNNNN
A
to
set
the
4395A
to
the
A
input.
11.
Press
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REFERENCE
VALUE
,
4
-
5,
4
3
5,
4
0
5,
4
x1
5,
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR
MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN
A
,
4
1
5,
4
0
5,
4
x1
5,
to
set
the
4395A
con
trols
to
the
reference
setting
for
the
test.
12.
Repeat
step
8
to
measure
the
input
attenuator
switching
uncertainly
at
the
4395A
A
input.
13.
Remo
v
e
the
xed
attenuation
from
the
A
input,
and
connect
it
to
the
B
input.
14.
Press
4
Meas
5,
NNNNN
B
to
set
the
4395A
to
the
B
input.
15.
Press
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REFERENCE
VALUE
,
4
-
5,
4
3
5,
4
0
5,
4
x1
5,
4
Scale
Ref
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR
MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN
B
,
4
1
5,
4
0
5,
4
x1
5,
to
set
the
4395A
con
trols
to
the
reference
setting
for
the
test.
16.
Repeat
step
8
to
measure
the
input
attenuator
switching
uncertainly
at
the
4395A
A
input.
17.
Calculate
the
test
results
using
the
equation
given
in
the
calculation
sheet.
Record
the
test
results
in
the
p erformance
test
record.
2-60
P
erformance
T
ests
Содержание 4395A
Страница 10: ......
Страница 26: ......
Страница 34: ......
Страница 77: ...Figure 2 17 B R Magnitude Ratio Phase Dynamic Accuracy Test Setup 2 Performance Tests 2 43 ...
Страница 167: ...Figure 5 1 Adjustment Hardware Setup Adjustments 5 5 ...
Страница 186: ...Figure 5 13 Receiver Gain Adjustment Location 5 24 Adjustments ...
Страница 190: ...Figure 5 16 Receiver Flatness Adjustment Setup 1 MHz 5 28 Adjustments ...
Страница 194: ...Figure 5 20 DC Bias Adjustment Setup 2 5 32 Adjustments ...
Страница 196: ...Figure 6 1 Troubleshooting Organization 6 2 Troubleshooting ...
Страница 206: ...Figure 7 1 Power Supply Lines Simplified Block Diagram 7 2 Power Supply Troubleshooting ...
Страница 212: ...Figure 7 5 A1 CPU Connector Locations 7 8 Power Supply Troubleshooting ...
Страница 220: ...Figure 8 1 Digital Control Group Simplified Block Diagram 8 2 Digital Control Troubleshooting ...
Страница 240: ...Figure 10 1 Top View Major Assemblies 10 4 Replaceable Parts ...
Страница 292: ...Table A 2 Manual Changes by Firmware Version Version Make Manual Changes A 2 Manual Changes ...
Страница 303: ...Change 6 Change the Replaceable Parts as following Figure A 10 Top View Major Assemblies Manual Changes A 13 ...
Страница 308: ......
Страница 311: ...Figure B 1 Power Cable Supplied Power Requirement B 3 ...
Страница 312: ......
Страница 342: ......