k2/100 10m beam up 30ft with 50ft of rg58 coax. How many turns and what diameter core to wind a balun on? Plan on winding it on pvc pipe. If I want to use the kat100 to tune it from 20-10meters do I need to alter the balun? Ive read 10 turns on 2inch pipe or 6 turns on a 4 inch pipe and Ive also read that the turns don’t matter you have to use 21ft. wt5y