If you have a MFJ-259, you can get the VF of the wire easily
or
1. put up a 10-meter dipole using bare wire - note the resonant freq
2. duplicate exactly using 14 THHN Str - note the NEW resonant freq.
divide the resonant freq from step 1 by the resonant freq from step 2. (or
is it the other way around)
Anyway, I don't think you have to add your social security number.
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