Keysight N9927-90001 User’s Guide 443
Noise Figure Mode (Option 356 – CPU2 Only)
Troubleshooting
Troubleshooting
Some measurements can result in invalid results (NaNs). In these cases the
FieldFox’s Noise Figure Option 356 displays the following:
— Red X on the NaN point
— Marker readout displays: "–––"
— SCPI will return its NaN representation (i.e., 9.91E+37)
Figure 23-23 Example of an invalid measurement
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