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Altering/Changing the system after calibration

Question asked by itzikhaim on Dec 21, 2011
Latest reply on Jan 4, 2012 by Dr_joel
My question relates to the calibration correction of a VNA when calibrated with, let's say cable X, but measures/used with cable Y having additional phase accumulation/deviation from the former (X) of say Phi (degrees).
Is this possible?
If not, what is the maximum deviation allowed from cable X and cable Y (in terms of phase), to yield good accuracy (say not to extend above 10% from the measurement used with cable X with respect to the measurement of cable Y)?

Many thanks,