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Test 2. Frequency Span Accuracy Test
‘I&t 2. Frequency
Span Accuracy Test
r
n,
1
Spectrum
kequency
Span
200
Hz
100kHz
100.1
kHz
IMHz
1.01 MHz
20
MHz
20.1
MHz
1.5
GHz
Steps 7, 9, and 11. Wide Span Error
F
Analyzer
Synthesized Sweeper
DUT Measured
Center
Freq. A
Freq. B
A Synth
Freq. C
Freq. D
A DUT
Frequency
Cf-.45
span
cf +
.45
span
P-4
(D-C)
100
MHz
99.999 910 MHz
100.000 090
MHz
180 Hz
100
MHz
99.955 000 MHz
100.045 000
MHz
90.000 Hz
100
MHz
99.954955 MHz 100.045045
MHz
90.090kHz
100
MHz
99.550
OOOMHz
100.450 000
MHz
900.000kHz
100
MHz
99.550 550 MHz
100.450 500
MHz
909.000kHz
100
MHz
91.000000 MHz
109.000000
MHz
18.000 MHz
100
MHz
90.955 000 MHz
109.045.000
MHz
18.090MHz
900
MHz
225
MHz
1575
MHz
1350MHz
Note
1
Step 12. Span Error
Freq Span Span Error
Spec.
ADUT- ASyn
Min
Max
from
‘able
2-3
200
Hz
-10
Hz 10 Hz
100
kHz
-5000
Hz
5000
Hz
100.1 kHz
-5,005
Hz
5,005
Hz
1 MHz
-50,000
Hz
50,000
Hz
1.01 MHz
-23,230
Hz
23,230
Hz
20
MHz
-460,000
Hz
460,000
Hz
20.1 MHz
-462,300
Hz
462,300
Hz
1.5
GHz
-34,500.OOO
Hz
34,500O.OOO
Hz
The specification in Table 2-4 was derived using the following formula:
For spans > 1 MHz, the
spec
is:
>&[(.02)(A
synth freq) + (.005)(span)]
For spans
5
1 MHz, the
spec
is:
>&[(.05)(A
synth freq) + (.005)(span)]
Performance Tests 2-71