Greetings,
The process sounds pretty good to me but I have not used it.
Before my VNA I used an MFJ Antenna analyzer to create 1/4 wave lengths of coax.
I found an article that described the following.
Create a coax adapter with a 50 OHM resister in SERIES with the center conductor of the coax.
I used a PL-259 and an SO 239 fittings. Connect your OPEN length to the SO-239.
Tuning for minimum SWR you can determine the ODD 1/4 wavelengths. (ie 1/4, 3/4, 5/4 etc)
The lowest one found is the 1/4 of course.
I hope that this helps.
73 Gordon WA4FJC
