HP 3400A Service Manual

Maintenance
,
Model 3400A
5-9. Frequency Response Check
NOTE
Connect the 50 ohm feedthru termination directly to the 3400A IN-
PUT, to eliminate high frequency losses in the output cable.
a. Connect the test setup shown in Figure 5-2.
b.
Set
the
-hp-
Model
3400A
RANGE
switch
and
Test
Oscillator
output
attenuator
to
the
1
volt
position.
c. Set the Test Oscillator for a 400 Hz output. Adjust its amplitude for the reading ob-
tained in paragraph 5-8 step d, on the 3400A.
d.
Adjust
the
Test
Oscillator
frequency
to
the
values
listed
under
‘‘Frequency”’
in
Table
5-3.
Make
sure
the
3400A
is
within
the
limits
shown
under
‘‘Meter
Reading’
in
the
table.
If
out
of
the
indicated
limits,
perform
the
High
Frequency
Calibration
procedure
in
paragraph
5-26.
hp3400A
TEST
OSCILLATOR
RMS
VOLTMETER
p654A
50M FEED-THRU
TERMINATION
Apioses
a:
ee me ae ee ew
Figure 5-2. Frequency Response Test Setup
Table 5-3. Frequency Response Check
0.95 to 1.05
45 Hz “0.95 to 1.05
100 Hz 0.99 to 1.01
900 kHz 0.99 to 1.01
1.2 MHz 0.98 to 1.02
1.8 MHz 0.98 to 1.02
0.97 to 1.03
0.97 to 1.03
0.95 to 1.05
0.95 to 1.05
5-4

HP 3400A Specifications

General

Brand	HP
Model	3400A
Category	Measuring Instruments
Language	English