2. Frequency Span Accuracy
Frequency Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 3335A
Synthesized Sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8340A
Adapter, Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . 1250-0780
Adapter, Type N (m) to SMA (f) . . . . . . . . . . . . . . . . . . . . . . . . . . 1250-1250
Adapter, SMA Female Connectors . . . . . . . . . . . . . . . . . . . .
Cable Assembly, SMA Male Connectors . . . . . . . . . . . . .
1. Press
2. Connect equipment as shown in Figure 2-3.
3. Set the frequency synthesizer for an output frequency of 40 MHz
and an output power level of -10
4. Key in the following analyzer settings:
[
CENTER FREQUENCY
)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MHZ
(
FREQUENCY SPAN
] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Set the frequency synthesizer to
Hz. (See Table 2-3.)
6. Press MARKER
and
(
PEAK SEARCH
).
7. Press MARKER la] and set the frequency synthesizer to
Hz. (See
2-3.) Press MARKER
(
PEAK SEARCH
].
8. Using the procedure of steps 5, 6, and 7, measure the frequency
separation of the indicated signals for each setting in
2-3.
The MARKER A frequency should be within the limits given in the
table.
2-3. Narrow Span Accuracy
Spectrum Analyzer Frequency Synthesizer
MARKER
A
Frequency
[
FREQUENCY
Low
High
Min
Actual
Max
20
15.84
16.16
50
39.60
40.40
150
118.80
121.20
200
158.4
161.6
1 MHz
792.00
808.00
2 MHz
1.584 MHz
1.616 MHz
6 MHz
4.656 MHz
4.944 MHz
10 MHz
7.76 MHz
8.240 MHz
50 MHz
38.80 MHz
41.2 MHz
9. Disconnect the frequency synthesizer from the analyzer input.
Connect equipment as shown in Figure 2-4.
Performance Tests 2-9
