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–==