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General Calibration Accuracy Question

Question asked by Eshar on Jul 20, 2010
Latest reply on Jul 21, 2010 by Eshar
Does Port Power and IF Bandwidth affect the accuracy of calibration at high frequencies (>30 GHz)?

I have noticed that I always end up with larger calibration inaccuracies near the high end of my VNA measurement (~30-67 GHz). Is there any common reason for it?