Keysight Technologies N9321C, User Manual

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53
Functions and Measurements
Making Distortion Measurements
Making Distortion Measurements
This section provides information on measuring and identifying
signal distortion.
Identifying Analyzer Generated Distortion
High-level input signals may cause analyzer distortion products
that could mask the real distortion measured on the input signal.
Use trace and the RF input attenuator to determine which signals,
if any, are internally generated distortion products.
In this example, we use the RF output of a signal generator to
determine whether the harmonic distortion products are internally
generated by the analyzer.
1 Connect the signal generator to the analyzer
RF IN
.
2 Set the source frequency to 200 MHz, amplitude to 0 dBm.
3 Set the analyzer center frequency and span:
Press
Preset
Press
Frequency > 400 > MHz
Press
Span > 500 > MHz
Figure 3-16Harmonic Distortion