If I read the write up correctly, one thing the user must do using the Python script is insert into it the velocity factor for the cable being measured.?
Unfortunately, the manufacturers spec isn't always accurate. Or it is for their cable but not for all that same kind of cable (i.e. their RG8 Vf may be correct but is not universal for others' RG8).? That said, depending on your requirement for an accurate length measurement, this may not be a big deal.
So, how would you determine the velocity factor? I've done it by using a known length and measuring using the spec'd velocity factor. The difference between the measured and known length, taking the velocity factor in to account, will tell you how accurate the spec is for Vf. Again, the difference may be small enough to not be of concern.??
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---- On Mon, 26 Aug 2019 09:48:40 -0400 Larry Rothman <ac293@...> wrote ----
Oh yeah, I forgot about that post.
The only issue is you need to read with VNA Sharp, then save, then run the saved file through the Python app.
It would be nice to just run the Nano directly from a python app, click a button and you've got the length. :-)
Larry
