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Procedure
Spectrun
Frequent y
&an
200Hz
IOOkHz
100.1
kHz
1MHz
1.01 MHz
20MHz
20.1 MHz
1.5
GHz
Analyzer
Center
Frequent y
100
MHz
100MHz
100
MHz
100
MHz
100
MHz
100
MHz
100
MHz
900
MHz
2. Frequency Span Accuracy Test
Synthesized Sweeper.....................................................................
83640A
AdapterTypeN(m) to SMA(f).................................................1250-1250
Cable;SMAconnectors....................................................................
.5061-5458
Cable; BNC122cm(48in)............................................................HP
10503A
1. Connect equipment as shown in Figure 2-3.
2. Press
QNsTR
PRESET]
on analyzer.
3. Press [CENTER FREQUENCY] 100 MHz, [FREQUENCY
SPAN_)
200
Hz.
4. Connect synthesized sweeper tot spectrum analyzer RF input 2.
5. On synthesized sweeper, select external REFERENCE and key in
(jj’
0 dBm.
6. Press
Icw]
and key in 99.999 910 MHz.
7. Press MARKER [PEAK SEARCH) on spectrum analyzer and record
marker reading under FREQ C of
Table
2-3.
8. Set synthesized sweeper frequency to 100.000 090 MHz.
9. Press MARKER
[PEAK SEARCH] and record marker reading under
FREQ D of Table 2-3.
10. Repeat the span measurement procedure of steps 6 through 9 for
each frequency span listed in
Table
2-3.
11. Determine the frequency difference between the two measured
points. Enter this value under the A DUT column in
‘fable
2-3.
12. The frequency span error is the difference between A DUT and A
SYNTH. (See table 2-3 for values). Calculate the span error and
record it in
Table
2-4.
13. Compare the table 2-4
spec
to the span error value calculated in
step 12.
lhble
2-3. Wide Span Error
Synthesized
SweeDer
c
Freq. A
Cf-.45
span
99.999 910 MHz
99.955 000 MHz
99.954955 MHz
99.550 000 MHz
99.550550MHz
91.000 000 MHz
90.955 000 MHz
225 MHz
Freq. B
cf +
.45 span
100.000090 MHz
100.045 000 MHz
100.045 045 MHz
100.450000 MHz
100.450500 MHz
109.000000 MHz
109.045.000 MHz
1575 MHz
1
A Synth
(B-4
180 Hz
90.000 Hz
90.090kHz
900.000kHz
909.000kHz
18.000 MHz
18.090 MHz
1350 MHz
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Performance Tests 2-7