Voltage baluns for antennas have never made sense to me,
except for Yagis. They have three output terminals, 0 degrees, 180
degrees, and "ground". On a Yagi, the boom might actually
work as an RF ground, plus the load is well balanced.
How you would connect a voltage balun to a vertical and its
ground screen is completely unclear. I also don't know
why you would want the 4:1 ratio.
Dan Zimmerman N3OX wrote:
> Any 4:1 voltage balun feeding an unbalanced antenna would cause this
> problem. Actually, in one sense, the better the balun, the worse the
> problem, because the better the balun the more it forces your coax shield
> above ground. ;-)
> A poor voltage balun would probably just overheat instead of forcing massive
> currents down your coax.
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