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I have been playing around with some 75Ω cable about 5' in length. I am using, for training purposes, both the Transform/Linear method and the Measurement/Cable method. I find that each method gives a different result, usually by .x meters. Kind of like "he who has two clocks does not know what time it is". Neither is exact to my known physical measurement, which I expected because not even the most expensive VNA can measure exactly what a physical measurement can. Heck, even physical measurement can be off.

So in your humble opinion, which method do you use most, and have you found it accurate enough (for government work - LOL)?

Thanks in advance,
Brian D
KF6BL