On 2/5/2023 8:18 PM, Lux, Jim wrote:
>>> I just do a cal with the coax, putting the O,S,L at the end. Then between
>>> that measurement, and the no coax cal, you've got the S21 for the Coax,
>>> which most of the tools will de-embed if needed. You could probably just
>>> do a "open" measurement and it would be good enough to measure the coax.
>>> I guess if you've got an antenna up on the tower, that's a bit harder.
There's a detailed description of several different ways to "calibrate
out" a transmission line when the far end is hard to get to here:
https://ac6la.com/zpapndx1.html
Dan, AC6LA
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