Performance Tests Model
8904A
Actual
3.
Set the audio analyzer to measure distortion in
dl3.
On the Multifunction Synthesizer, set the
amplitude
and
frequency
as
listed in the following table.
Also,
set the low-pass filter on the audio
analyzer
as
listed. For each setting, the distortion read
on
the audio analyzer should be within
the limits shown.
Upper
NOTE
Failure to pass this test
rnuy
be due to ground
loops
in the test setup.
lly
floating the Multifunction Synthesizer (that
is,
key
in
SHIFT
FLOAT
1
ON),
set the audio analyzer's input to &at, and connect
a
pair of cables (twisting
them a few times) between the
high
connectors and the low connectors. Place
the
5m
load
at the audio anulyzer's input.
This concludes the test if the instrument does not he Option
002.
Analyzer Low-Pass
Filter
(kHz)
30
30
80
80
750(')
750(l)
30
30
80
80
750(')
750(')
Multifunction Synthesizer Settings
20
7
500
7
500
20
000
20
000
100
000
20
7
500
7 500
20
OOO
20
000
100
000
Amplitude
(V)
10
10
10
10
10
10
0.14
0.14
0.14
0.1 4
0.14
0.14
-63
-63
-63
-63
-55
-55
-63
-63
-63
-63
-55
-55
I
('1
On
an
HP
89036
a
750
kHz
low-pass
filter is
selected
when
the
other
low-pass
filters
are
off.
output
2
4.
On the Multifunction Synthesizer, press
SHIFT
PRESET.
After the instrument presets, key in
fl
(Channel
Config.)
NEXT NEXT
SHIFT
FLOAT
2
OFF
AMPTD
10
V
5.
Connect the
OUTPUTS
2
HIGH
output to the audio analyzer's (non-floating) input. Terminate
the audio analyzer's input in
50R
using
a
tee.
6.
Set the audio analyzer to measure distortion in
dB.
On the Multifunction Synthesizer, set the
amplitude and frequency as listed in the following table (as was done in step
3).
Also, set the
low-pass filter on the audio analyzer
as
listed.
For
each setting, the distortion read on the audio
analyzer should be within the
limits
shown.
4-18
Performance Test
5
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