> SO what I'll do is use the VNA to measure the loop's XL, calculate a
> starting point for coax lengths based upon it, and make a few other
> cables which are slightly different in length. Then I'll see what
> works best.
The problem is that the XL of the loop in free space (unloaded) really
doesn't really tell you anything. The loop is a coupling element; it's not
just a series inductor. Its effect in the circuit will vary with rotation,
cavity resonant frequency, load Z on the opposite port, etc. It's really
not as simple as you'd hope it would be. It it were, I'd have a spreadsheet
that tells me everything I need to know without having to resort to line
stretchers and a rack of dangling test cables...
--- Jeff WN3A
