Keysight Technologies N9321C, Руководство пользователя

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57
Functions and Measurements
Making Distortion Measurements
2 Set one source (signal generator) to 300 MHz and the other source
to 301 MHz, for a frequency separation of 1 MHz. Set the sources
equal in amplitude as measured by the analyzer (in this example,
they are set to –5 dBm).
3 Set the analyzer center frequency and span:
Press
Preset
(With
Preset Type
of
DFT
)
Press
Frequency > 300.5 > MHz
Press
Span > 5 > MHz
4 Reduce the RBW until the distortion products are visible:
Press
BW
and
5 Move the signal to the reference level:
Press
Peak Search
Press
Marker > Marker To > To Reference
6 Reduce the RBW until the distortion products are visible:
Press
BW
and
7 Activate the second marker and place it on the peak of the
distortion product (beside the test signal) using the
Next Peak
:
Press
Marker > Mode > Delta
Press
Peak Search > Next Peak
8 Measure the other distortion product:
Press
Marker > Mode > Normal
Press
Peak Search > Next Peak
FM
FM