HP 8642A - Page 250

Performance Tests
Model 8642A/B
PERFORMANCE TESTS
4-9. AM, FM and PM TESTS
SPECIFICATION:
Electrical Characteristics
AMPLITUDE MODULATION
Depth
Resolution
Incidental PM
Indicator Accuracy
(1 kHz rate, up to 90% AM)
AM Distortion at 1 kHz rate
FREQUENCY MODULATION
3 dB Bandwidth
Internal
External ac
External dc
Maximum Peak Deviation
(ac coupled
and internal)
Performance Limits
0 to 99.9%
0.1%
0.20 radians peak
±(3.5% of reading +1% AM)
±(5% of setting +1% AM)
8642A
Bands 1-8 Band 9, HET
<1% <2%
<2% <4%
<4% <6%
8642B
Bands 1-9 Band 10, HET
<1% <2%
<2% <4%
<4% <6%
dc to >200 kHz
<20 Hz to >200 kHz
20 Hz to 100 kHz
The smaller of:
3 MHz or f
mod
X 2160
1.5 MHz or f
mod
x 1080
750 kHz or f
mod
X 540
375 kHz or f
mod
x 270
187 kHz or f
mod
X 135
93.8 kHz or f
mod
X 67.5
46.9 kHz or f
moa
X 33.75
23.4 kHz or f
mod
X 16.88
11.7 kHz or f
mod
X 8.44
93.8 kHz or f
mod
x 67.9
Conditions
Level <+10
1 kHz Rate 30% AM
8642A Bands 1-8, HET;
8642B Bands 1-9, HET
8642A Band 9,
8642B Band 10
0 to 30% AM
30 to 70% AM
70 to 90% AM
0 to 30% AM
30 to 70% AM
70 to 90% AM
band 10
9, HET
8
7
6
5, 1
4
3
2
1
4-18