Troubleshooting - Keysight A Series User Manual

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Noise Figure Mode (Option 356 – CPU2 Only)

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 30-16

Example of an invalid measurement

Keysight N9927-90020 User's Guide

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