Keysight NFA Series Noise Figure Analyzers Service Guide 499
Functional Tests
Second Harmonic Distortion (SHD)
Figure 17-3 Second Harmonic Distortion Test Setup
Procedure
1. Configure the equipment as shown in Figure 17-3.
2. Press MODE/MEAS. Select the Spectrum Analyzer mode, Swept SA
measurement, and Normal view. Press OK. Press Mode Preset.
3. Set up the synthesized sweeper by pressing:
Frequency, 40, MHz
Amplitude, –10, dBm
4. Set up the signal analyzer by pressing:
Input/Output, Freq Ref Input, Freq Ref Input External
FREQ, Center Frequency 40, MHz
Span, 1, MHz
5. On the analyzer, press Peak Search.
6. Adjust the synthesized sweeper amplitude for a signal analyzer display of
–10 dBm ±0.1 dB.
7. On the analyzer, activate the marker delta function by pressing the Marker
and Delta keys.
8. On the signal analyzer, press:
FREQ, Center Frequency, 80, MHz
Meas Setup, Avg/Hold Number, 20, Enter
Trace, Trace Average
Single
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