516
Keysight NFA Series Noise Figure Analyzers Service Guide
Functional Tests
Scale Fidelity
7.
On the analyzer, press the
Single
key to trigger a 10 sweep average.
8.
On the analyzer, activate the Marker Delta function by pressing
Peak
Search
,
Marker Delta
.
9.
Perform the following steps for each attenuator setting listed in the table
below:
a.
Select the next External attenuator setting.
b.
Press the
Restart
key to trigger a 10 sweep average.
c.
Enter the delta marker value into
d.
Check delta marker reading against the test limits.
Table 17-10
Scale Fidelity Results
External Attenuator Setting
Minimum
(dB)
Marker Delta Value
(dB)
Maximum
(dB)
0
N/A
Reference
N/A
10
–
11.0
–9.0
20
–21.0
–19.0
30
–31.0
–29.0
40
–41.0
–39.0
50
–51.0
–49.0
Содержание N8973B
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Страница 228: ...228 Keysight NFA Series Noise Figure Analyzers Service Guide RF Section Troubleshooting N8976B Troubleshooting ...
Страница 268: ...268 Keysight NFA Series Noise Figure Analyzers Service Guide Analog Digital IF Troubleshooting 25 MHz BW IF Section ...
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Страница 350: ...350 Keysight NFA Series Noise Figure Analyzers Service Guide Service and Diagnostics Menus Front Panel Key Test ...
Страница 470: ...470 Keysight NFA Series Noise Figure Analyzers Service Guide Assembly Replacement Procedures Front Frame Assembly ...