[Elecraft] Slightly OT: non-resonant wires

[Lynn W. Taylor, WB6UUT]

Only a bit off-topic, since I have a KX3 w/tuner and a 9:1 balun to go 
with it.

I know how to trim a resonant antenna to the correct final length. I 
also understand why truly "random" wires don't necessarily work.

The recent post about shipboard operations near Antarctica said they're 
using a 53' wire.

How do you guys measure an antenna like this?  I assume it can be a few 
inches off, but....

73 -- Lynn