Troubleshooting Network Analyzer Impedance Measurement

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SUMMARY

The discussion centers on troubleshooting impedance measurement using a Network Analyzer. The user encountered an issue where a 100-ohm resistor was not displaying correctly on the Smith chart. Key solutions included ensuring equal line lengths to the test and reference loads and performing a calibration reset by hitting the preset button. The user successfully resolved the issue by redoing the calibration.

PREREQUISITES
  • Understanding of Network Analyzers and their calibration processes
  • Familiarity with Smith charts and their interpretation
  • Knowledge of impedance measurement techniques
  • Experience with RF measurement setups
NEXT STEPS
  • Research Network Analyzer calibration procedures
  • Learn about Smith chart applications in RF engineering
  • Explore techniques for measuring impedance accurately
  • Investigate the impact of line lengths on measurement accuracy
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Electrical engineers, RF technicians, and students learning about impedance measurement and Network Analyzer operation.

gremio594
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In class we are learning to use Network Analyzers. I am trying to measure impedance on with it but the analyzer is not displaying the point right. I'm measuring a 100 ohm resister and the point is way to the right on the smith chart, like not even on the smith chart. My professor doesn't know how to fix this any ideas?
 
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Which way round is your Smith chart? Is it with the resistance scale vertical?
 
Have you made sure that the line lengths to the test and reference loads are equal? Unequal lengths can give a point at any point on a circle on the Chart.
 
Thanks for the help guy but I figured it out. Had to hit preset then had to redo the cal
 

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