Iâm thinking about putting up a flag antenna for 160 and 80 meters. I
had an idea that I might build the vertical sections out of some  inch
copper pipe I have lying around. The horizontal wires would be 14 ga.
copperweld. I modeled this with 4nec2 and find that the increased
diameter of the vertical sections results in a reduced feedpoint and
termination impedance, down around 623 ohms, give or take. (This is for
the bottom wire only 2 feet above ground).
Anyone have any ideas, comments, suggestions?
-Tony, K1KP
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