Windom Dipoles and original T

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Here is a reprint of a fine article examining the essential points of the popular Windom antenna, or plural as there are now so many variants.
The engineering is still the same.... Thank you W8JI.

Windom off center fed

revised some wording 1/11/2010
The modern common Windom antenna is not an original single-wire fed Windom, but rather an off-center-fed or "OCF"
two wire feed dipole. The normal Windom is described as having a 1/3 length leg, and a 2/3 length leg. In other words
an 80-meter Windom 137 feet long would have one leg 45.667 feet long, and the other leg 91.333 feet long.
After spending some time modeling OCF antennas, the closest antenna I could find to a true multi-band dipole with
reasonable SWR on most bands had an 80%/20% leg length and 200-ohm feedpoint. This would be 109.6 feet for one
leg, and only 27.4 feet for the other leg. The antenna could be scaled for other bands.
There is one caution with this. The large offset means the balun must be particularly

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