106 Chapter 2
Performance Verification Tests
13. Input Attenuation Switching Uncertainty
Example for 25 dB analyzer internal attenuation setting:
Post-test Instrument Restoration
16.Remove the RF cable from the analyzer input connector.
17.On the analyzer, press Preset, System, Alignments,
Auto Align, All.
Switching Error Marker Delta Reading Ideal Marker Delta Reading
– Attenuattio
–=
Marker Delta Reading 14.790 dB=
Ideal Marker Delta Reading 15 dB=
Attenuation Error 0.148 dB–=
Switching Error 14.790 15– 0.148–()– 0.062 dB–==