Dear gin&pez,
Thank you very much for taking the time to reply to my questions.
I must apologize -- it is clear that my questions were too vague. I hope you will allow me to ask them in a clearer fashion.
To improve my understanding "facupov", I would like to understand:
1. For the Open and Short standards, in what terms (or parameters) do you define each standard's two uncertainties?
(I will note that Keysight (formally Agilent, formally Hewlett-Packard) defines the Open and Short uncertainties each in terms of a single parameter: angle of the Reflection Coefficient. How are your two parameters of uncertainty related to the manufacturer's definition of uncertainty in terms of a single parameter, Reflection Coefficient angle?)
2. For the Load standard, in what terms (or parameters) do you define its single uncertainty?
(I will note that Keysight defines its Load-standard uncertainties in terms of rho (rho being defined as the magnitude of the Reflection Coefficient). Therefore, the range of possible values for the Load can be pictured on a Smith Chart as being those values whose Reflection Coefficients are bounded by a circle, centered at 0,0, whose radius is rho. And so I would think that a Load would have two uncertainties, defined in terms of the magnitude and the angle of its Reflection Coefficient, rather than a single parameter of uncertainty.)
I hope my questions help you to understand why I am confused. Thank you again for taking the time to reply. I very much appreciate your efforts.
Best regards,
- Jeff, k6jca
