Well I've messed with this long enough an have to push the button to start building. Getting ready for a repack scheduled for February. I may come back later and add a separate VHF, but for now this is the best I've been able to do with a simple 4 Bay bowtie with a flat screen grid tweaked for 557, 569, and 575 MHz. Gain of 16, impedance ~ 300, SWR ~ 6 at all three frequencies. I have the screen shots to post but I don't know what's involved in setting up a URL for them. For a 36 x 42 size it'll work out for me.