Take an idea from an old timer. [71] I built antennas for 50 years. Everything you could think of. All that I built above 30 MHz failed except for my 2 Headed Viper. Bought commerical antennas and made special mounts. See my profile for ant pics. My 66' Windom and my 30' Bud vase Vertical for shortwave worked fine. I know it's fun to do these things, but its really a waste of time. I also have a Box full of alum rod and tube thats headed to the next hamfest. Good Luck anyway. Larry