On Mon, Oct 5, 2020 at 10:30 PM, RayC wrote:
Thanks, I got it downloaded and installed. This appears to be for seeing
uncertainty given a specific model VNA and cal kit. It's quite interesting but
if I had my own cal kit, how might I estimate the uncertainties of that?
Suppose I have a load standard that comes out at 52 ohms and some nH of
inductance and I want to set an upper frequency limit. Maybe there are some
rules of thumb. Or maybe I've overlooking a way to use that Keysight
spreadsheet.
Hi Ray,
I am surprised the sheet does not allow you to play WHAT IF. I put together a sheet after the old hp seminar and that permitted you to enter coupler errors, cal kit errors, tracking errors and source flatness, coupler directivity, etc... and obtain an error bound for the 4 resulting measured s parameters. I'll see if I can locate the sheet. You might want to look at this note if not already mentioned.
