Formulas used by SARK-110 ?

[Rob Roschewsk]

It's my understanding that all of the values displayed by the SARK-110 (Rp, Xp, VSWR, Zs, etc.) are derived from Rs, Xs as output by the ZPLOTS csv.

Is there a reference that shows all those formulas? 

I scanned all of the docs and I'm only finding partial info.

Just trying to save the work of deriving / looking them up individually :)

Thanks,

--> Rob