Hello，I’m new with the VNA uncertainty. My questions maybe too out of date. I have read some papers published about the residual error model. Now I want to evaluate the one-port residual error with the equations. But I meet difficulty.
The given equations to calculate the residual errors are as functions of assumed value of standards and errors in standards. I use the 85056D calibraton kits. The short and open are only have phase uncertainty(obtained from the service Guide), so how to substitute them into those equations, use what forms? They should be complex numbers. The assumed value of standards I want to use the model value also obtained from service Guide. But through this way, computed residual errors should be complex numbers, it's strange.