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5/8 over 5/8 over 5/8.. On 2m - Looking for ideas
Hi All
I will be moving to a house early next year that has 90ft trees scattered around the backyard. Rather than setup a tower (initially anyway) I am looking at hanging a wire (1/2" braid) 2 metre collinear for a rope between the trees and feeding it from the bottom end. Firstly talking about phasing sections. Has anyone come accross the maths/size of using a single turn of stiff wire (looks like a ring match) to go between the elements? Was thinking a short length of PVC pipe with dowel or fibreglass spacers. How big? What is the general figure of merit for shortening the topmost element by when joined to a (say) PVC insulator. And feeding. Was thinking about the J pole type match - The two parallel wires 1/4 wavelenth long and a direct coax feed a few inches from the bottom. Are there any better end/voltage fed methods? Any thoughts or other construction methods/ideas appreciated. Cheers Bob VK2YQA |