7 Test Sequence Application
372 Keysight U8903B User’s Guide
DFD level sweep
DFD level sweep measurement will add up two tones of different frequencies into a
stimulus signal to sweep through a range of levels. The results are displayed on an X-Y
graph, with the swept generator level or measured DUT level on the X-axis and the
measured DFD ratio on the Y-axis.
Refer to “Measurement Results” on page 399 for more information on the respective result
menu page. Use the arrow keys to navigate through the respective tabs and to display the
menu page.
Signal generation
The DFD level sweep signal generation settings menu page is displayed as shown in
Figure 7-49.
Figure 7-49 DFD Level Sweep > Signal Generation settings menu page
This measurement requires a closed-loop configuration in which both the generator and
the analyzer are used in the test setup. If None is selected for the output configuration
channel, this measurement is unavailable.
The signal generation is disabled if None is selected for the output configuration channel.
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