Model
8642A/B
Performance Tests
PERFORMANCE
TESTS
Electrical Characteristics Performance Limits Conditions
FREQUENCY MODULATION
(Cont'd)
Maximum Peak Deviation 3 MHz
band 10
(dc coupled)
1.5 MHz
9,
HET
750 kHz
8
375 kHz
7
187 kHz 6
93.8 kHz
5,
1
46.9 kHz 4
23.4 kHz
3
11.7kHz
2
93.8 kHz 1
1.5 MHz HET
Indicator Accuracy
±(5%
of
reading
+10
Hz)
(Rates
~
100 kHz)
FM Resolution The larger of:
0.7%
of
setting
or
0.0004%
of
max deviation
Incidental
AM
0.030% 20 kHz deviation, 1 kHz
(1
kHz rate) rate, > 400 kHz carrier
FM Distortion 0.4% 1/15 max dc coupled deviation
(Rates 20 Hz to 100 kHz) 2.0% 1/2 max dc coupled deviation
4.0% max dc coupled deviation
Frequency Offset
None internal and ac
(Rates 20 Hz to 100 kHz) 2.0% 1/2 max dc coupled deviation
4.0%
max
de
coupled deviation
FM Distortion 0.4%
1/15 max dc coupled deviation
(Rates 20 Hz
to
100 kHz) 2.0% 1/2 max de coupled deviation
4.0%
max
de
coupled deviation
Frequency Offset None
internal and ac
< 500
Hz
dc
< 1 kHz
dc, band 10
PHASE MODULATION
Maximum Peak Deviation 200 radians band 10
100 radians
9,
HET
50 radians 8
25 radians
7
12.5 radians 6
6.25 radians
5,
1
3.13 radians
4
1 .56 radians
3
0.78 radians 2
rev.12DEC86
4-·19
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