Measured Velocity Factor of balanced line
Bob Inscribed thus:
Thanks to all for the advice on measuring velocity factor.
I suspended 53.25 feet of JSC #1317 18-AWG balanced line in the
backyard.
At a velocity factor of 1, the MFJ 269 claimed an electrical length of
59.5 feet, which would give an actual velocity factor of .89.
After four or five more tries, I nearly replicated it with an
electrical length of 59.6 feet.
To verify the results, I tried entering the .89 velocity factor to get
the length of the line, and it kept coming in at a 26.6 foot length --
oh, well.
Bob
k5qwg
That sounds pretty close to half of the physical line length you
mentioned.
--
Best Regards:
Baron.
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