HP 8901B

Performance Tests Model 8901B
Audio
Synthesizer
200
1 000
20 000
20 000
Frequency (Ht)
High Average FM CPM Limits (rad)
Pass Deviation
Lower Actual Upper
50 50
242.4
- 257.6
300 250
242.4
- 257.6
300 250
12.0 -
13.0
300 4’
0.193
- 0.207
Filter (kHt)
Audio
Synthesizer
Frequency (Hz)
10 000
10 000
1 000
200
oM Distortion
Average FM CPM Limits (rad)
High
Pass Deviation
Lower Actual Upper
300 25
2.39 -
2.61
300 2.5
0.239 -
0.261
300 25
24.0 -
26.0
50 5
24.0 -
26.0
Filter (kHt)
8.
9.
10.
11.
Connect the FM output of the AMFM test source to the Measuring Receiver’s INPUT. (See
Figure 4-3.) Press AUTOMATIC OPERATION on the Modulation Analyzer.
Set the audio analyzer’s oscillator
to 1 kHz. Connect its output to the audio input of the AM/FM
test source. (See Figure 4-3.)
NOTE
For this test, if the audio analyzer has floating input and output connectors,
the
low connector should be grounded. Connections should be made to the
high input
or high output connector.
On the Modulation Analyzer, press @M. Set DETECTOR to PEAK+. Set HP FILTER to 300
Hz. Set LP FILTER
to 15 kHz.
Adjust the audio analyzer’s oscillator level
to give a display of 400 rad peak deviation.
4-16 Performance Test 3
rev.1 OFEB88