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Trace noise issue at low power measurement

Question asked by tandmguy on Feb 24, 2017
Latest reply on Mar 7, 2017 by Dr_joel

I am using ECAL to calibrate the PNA N5230A at preset power (-5dBm) and traces are coming good.

Actual measurement needs to be done at -60dBm and when the power is set to -60dbm (after cal), traces are having noises and it is fluctuating.

Since ECAL calibration is NOT possible at -60dbm, can somebody suggest is there any procedure to eliminate the noises at -60dbm?