Keysight Technologies Option 503 Service Manual page 577

Functional Tests
Amplitude Accuracy at 50 MHz
7. Perform the following steps for each row listed in
Table 18-5 Amplitude Accuracy Results
Nominal Attenuation
Source (dB)
Amplitude
(dBm)
-4 10
-9 10
-14 10
-4 20
-14 20
-4 30
-14 30
N9030A PXA Signal Analyzer Service Guide
Sweep/Control, Sweep Setup, Swp Time Rules, SA - Accuracy
Meas Setup, Average/Hold Number, 20, Enter
Trace/Detector, Trace Average
Single
a. Set the synthesized sweeper amplitude to the value listed in the
Nominal Source Amplitude column in
b. Set the Mech Atten as indicated in the Attenuation column in
18-5.
c. Set the Span as listed in the Span column of
d. Record the synthesized sweeper amplitude, as measured by the
power meter, in the Power Meter Amplitude column of
e. On the signal analyzer, press Restart.
f. Wait for the signal analyzer to finish averaging.
g. Press Peak Search.
h. Record the signal amplitude, as measured by the analyzer in the
Measured Amplitude column of
i. Calculate the signal amplitude accuracy error using the following
equation, and record the results under the Amplitude Accuracy
Error column:
Amplitude Accuracy Error = Meas_amp - Power_meter
Span Measured
(MHz) Amplitude
Meas_amp
(dBm)
2
1
0.5
0.1
0.1
0.1
0.1
Table 18-5:
Table 18-5.
Table
Table 18-5.
Power Meter Amplitude
Amplitude Accuracy
Power_meter Error
(dBm) (dB)
Table
18-5.
Table 18-5.
Test Limit
(dB)
±1.13 dB
±1.13 dB
±1.13 dB
±1.13 dB
±1.13 dB
±1.13 dB
±1.13 dB
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