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Figure 3-15 Maximum Hold and Update to Observe Signal Drift
Measurement of Signal Distortion
This chapter will describe how to recognize and measure signal distortion.
Recognize the Distortion Generated by Spectrum Analyzer
A high level input signal may cause the spectrum analyzer to generate a distortion signal, and this
distortion signal will mask the true distortion to be measured on the input signal. User can trace and
radio frequency attenuator to identify the signal. If it presents, that is generated by the instrument
internally.
In this example, we use the output signal from a signal generator as a source to identify if the harmonic
distortion component is generated by the spectrum analyzer.
1. Connect the signal source to RF IN port of spectrum analyzer.
2. Set the frequency and amplitude of signal source to: 200MHz, 0dBm
3. Set the center frequency and sweep span:
Press [Default]>Reset
Press [FREQ]>Center Frequency>400MHz，Span>500MHz
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