Model 3580A
PERFORMANCE
TESTS
Section V
a. Reposition the following front panel controls:
AMPLITUDE
MODE
.......
LOG 10 dB/DIV
AMPLITUDE REF LEVEL
.......
NORMAL
b. Connect the digital multimeter
(DC
mode, 100 volt
range)
to
the Y AXIS output
of
the 3580A.
c. Adjust the signal source for a - 70
dB
V
output
(-
70
dBm
900 n for Option 002). (See Table
5-3
for
proper levels.) Adjust the MANUAL VERNIER and ZERO
CAL for a peak display. Adjust VERNIER (Amplitude) for
a 1.50
volt±
.0 l volt reading on the multimeter.
d.
Adjust the AMPLITUDE REF LEVEL switch
to
the
settings given in Table 5-7. Check for the proper multimeter
reading.
NOTE
MANUAL VERNIER may have to
be
readfust-
ed to insure a peak display indication.
Table 5-7. Amplitude Ref.
Level
Tests (Log Mode).
INPUT
LEVEL
(10
KHz)
STANDARD
OPTION
002
AMPLITUDE
MULTIMETER
INSTRUMENT
900!2
REF.
LEVEL
READING
- 70
dBv
-70
dBm
-10dB
2.00 v ± .02 v
-
70
dBv
-
70dl3m
-20
dB
2.50 v ± .02 v
-
70
dBv
-70dBm
-30
dB
3.00 v ±
.03
v
- 70
dBv
- 70
dBm
-40dB
3.50 v ±
.03
v
-
70
dBv
-70dBm
- 50
dB
4.00
v ± .04 v
-
70
dBv
-70
dBm
- 60
dB
4.50 v ± .04 v
-
70
dBv
-70
dBm
- 70 dB 5.00 v ± .05 v
e. Disconnect the multimeter from the 3580A.
5-25. Input Attenuator Tests.
a. Reposition the following front panel controls:
VERNIER (Amplitude)
............
CAL
AMPLITUDE
MODE
............
LINEAR
AMPLITUDE REF LEVEL
.........
-
30
dB
INPUT SENSITIVITY
(according
to
white marker
..........
1 V
DISPLAY SMOOTHING
............
MIN
b. Adjust the signal source for a 1 volt 10 kHz output
(See Table 5-8). Adjust MANUAL VERNIER for a peak
display indication. Adjust CAL 10 KHz for a full scale
display. Momentarily press DISPLAY - CLEAR WRITE.
c. Adjust the signal source and INPUT SENSITIVITY
switch to the levels given in Table 5-8. Check for the proper
display indication.
d. Reposition the following front panel control:
AMPLITUDE REF LEVEL
.......
NORMAL
Table 5-8. First
Input
Attenuator Test.
INPUT
3320B
or
OTHER
INPUT
DISPLAY
LEVEL
50
OHM
SOURCE
SENSITIVITY
INDICATION
(10
KHz)
(according
to
white
marker I
1 v + 13.01
dBm
1
v
Full
Scale
(CALI
.2
v .99
dBm
.2
v
Full
Scale ( ± 3%)
.1
v
6.99
dBm
.1
v
Full
Scale ( ± 3%)
20
mV
-20.99
dBm
20
mV
Full
Scale ( ± 3%)
e. Adjust the signal source for a 1 volt 10 kHz
output
(See Table 5-9). Adjust the CAL 10
KHz
for a full scale
display.
f. Adjust the signal source and INPUT SENSITIVITY
switch
to
the values
given
in
Table 5-9. Check for the
proper display indication.
Table 5-9. Second
Input
Attenuator Test.
INPUT
3320B
or
OTHER
INPUT
DISPLAY
LEVEL
50
OHM
SOURCE
SENSITIVITY
INDICATION
(10
KHz)
1
v + 13.01
dBm
1
v
Full
Scale
(CALI
.2 v
- .99
dBm
.2 v
Full
Scale ( ± 3%)
.1
v
6.99
dBm
.1
v
Full
Scale ( ± 3%)
20
mV
-20.99
dBm
20
mV
Full
Scale ( ± 3%)
10mV
-26.99
dBm
10
mV
Full Scale ( ± 3%)
2mV
-40.99
dBm
2
mV
Full Scale ( ± 3%)
1
mV
-46.99
dBm
1
mV
Full
Scale ( ± 3%)
.2mV
-60.99
dBm
.2
mV
Full
Scale ( ±
3%1
5-26. Frequency Response Tests.
a. Reposition the following front panel controls:
AMPLITUDE
MODE
.......
LOG 10 dB/DIV
AMPLITUDE REF LEVEL . . . . . . . . -
30
dB
INPUT SENSITIVITY
(according
to
white marker)
........
0
dB
RESOLUTION BANDWIDTH . . . . . . . . 3 Hz
b. Adjust the signal source for a 10 kHz 0
dBv
output
(O
dBm 900
.Q
for Option 002). (See Table 5-3).
c.
By
alternately pressing and releasing DISPLAY -
CLEAR WRITE while adjusting MANUAL VERNIER,
center the display indication (a narrow spike). Adjust
ZERO CAL for a peak display of.this spike.
d. Reposition the following front panel control:
AMPLITUDE
MODE
........
LOG 1 dB/DIV
e. Readjust MANUAL VERNIER for a peak display.
f.
Adjust VERNIER (Amplitude) for a - 1
dB
display
(1
dB/div).
g.
Adjust the signal source
to
the frequencies given in
Table 5-10 for an INPUT SENSITIVITY
of
0
dB.
At each
frequency, adjust the FREQUENCY dial to that
of
the
source. Then, slowly adjust the ZERO CAL for a peak
5-7
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