On 5/14/2014 7:38 PM, Bob McGraw - K4TAX wrote:
If the line is operating anywhere near a balanced
> condition there will be little to no radiation from the feed line.
Well, I guess it depends on your definition of "little" radiation. In my
case, I have measured greater current in one leg of the ladder line than
the other. This does not surprise me in that the antenna itself (132
foot dipole at 25 feet above ground) is anything but physically
balanced. The dipole is not in a straight line (bent at about 70
degrees), half of the antenna is over grass, the other half passes over
the house, different halves are closer or further from trees, etc, etc
all due to the lay of the land and available mounting points (trees) --
so, anything but "balanced". Unless you are very fortunate or have your
antenna in hypothetical free space, unequal currents i.e. feed line
radiation, is virtually unavoidable.
73,
Carter K8VT
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