On Mon,6/29/2015 10:30 AM, Tim Shoppa wrote:
I have had excellent success modeling "Marconi T" verticals with EZNEC. The
Demo version can do a Marconi T just fine.
Same here. My T vertical for 160 is 100 ft vertical and 82 ft
horizontal. That makes the antenna resonant below the band, with a
feedpoint Z of 50 ohms plus some inductive reactance on 160M. I add
series C to tune out the L. The same idea will certainly work on 80M.
Remember that any vertical needs an effective radial system or
counterpoise to prevent excessive losses in the earth.
73, Jim K9YC
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