And the advantage of this over a simple dipole is?


You have to use more wire, and more wire is better. At the 64' height, a
simple fan dipole or inverted vee for 40 and 80 ought to produce the same
results. Efficiency, bandwidth, impedance, and pattern will all be about the
same. I wonder what you do if you can't get the center up 64'?
73 Gary N4AST