To answer the question "Could a couple of inches or so difference in the
length of the legs of a dipole ever work in your favor?"......depends on
the frequency. For lower frequencies likely NO, for higher frequencies
maybe YES. Thus 2" for a 160M dipole would be 0.066% while 2" for a 10M
dipole would be 1.02%. In either case..........I doubt that it would
make a difference due to local installation conditions. i.e. Different
height above ground for the 2 sections, different ground conductivity
under the 2 sections, different location / proximity to surrounding
objects, different types of end insulators, and etc.
As pointed out earlier the current may shift a wee bit and thus distort
the "ideal" pattern but in the real world of ham antennas........NAH.
73
Bob, K4TAX
On 1/13/2019 2:07 PM, Ron Genovesi wrote:
I was asked a question by a newcomer to HF today. After thinking about
it, I realized it had never really occurred to me. So I’ll pass it on to the
group and see what the antenna gurus think.
Is there ever a time where a slight imbalance in a dipole could be
beneficial? My first inclination was, No, other than the obvious OCF Dipole.
But considering that you could have very different conditions under an
antenna, both above the ground and under the ground, not to mention a
difference in height above ground. What do you think. Could a couple of inches
or so difference in the length of the legs of a dipole ever work in your favor?
Ron Genovesi
[email protected]
541-761-1103
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