162 Keysight NFA Series Noise Figure Analyzers Service Guide
RF Section Troubleshooting (N8973B, 74B, 75B Analyzers)
Troubleshooting
Input Attenuator A Power Level Verification
Press Mode Preset, Input/Output, RF Calibrator, 50 MHz, AMPTD,
Attenuation, Mech Atten, 0 dB on the analyzer. Refer to Figure 4-13, remove
cable W11 from A9 (1) Output. Measure the 50 MHz calibrator signal on the
output of the attenuator using a functioning Spectrum Analyzer.
Figure 4-13 Cable W11
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