Keysight Technologies X Series Service Manual page 194

RF Section Troubleshooting (RF/Microwave Analyzers)
Troubleshooting
The level should be −28 dBm ± 2 dB as shown in
Figure 4-32 4.8 GHz Calibrator Signal on Output of Attenuator B
If the analyzer is equipped with Option FSA, press Mech Atten and enter 6 dB.
The 4.8 GHz calibrator signal measured on the functioning Spectrum Analyzer
should measure 6 dB lower than the previous step (~−34 dBm).
Press Mech Atten and enter 10 dB. The 4.8 GHz calibrator signal measured on
the functioning Spectrum Analyzer should measure 10 dB lower than the first
step (~−38 dBm). Continue testing all the attenuation settings as described in
Table
194
4-18.
Table 4-18
Attenuator Setting
a
16
20
30
40
50
60
a. Requires Option FSA
Figure
Expected Level
dBm @ 4.8 GHz
−44
−48
−58
−68
−78
−88
Keysight N9010A EXA Service Guide
4-32.
Tolerance
±3 dB
±3 dB
±3 dB
±4 dB
±4 dB
±4 dB