Posted by
KEN-3 on
Jan 14, 2019; 12:58am
URL: http://elecraft.85.s1.nabble.com/Slightly-Unbalanced-dipole-tp7648044p7648072.html
For HF, I doubt that many (if any) dipoles are fully balanced. On higher
frequencies (VHF), the antenna can be far enough away from other objects
and the ground that it could be considered unaffected by the
environment. But a 40m dipole at 40 feet is less than a half wave from
the ground and other objects so i doubt that it is not influenced by
it's unbalanced surroundings. Heck, even the grass is greener on one
side than the other (more moisture.)
Does it make a difference in operational abilities? Probably not.
Sure it might be 3 db better to the north than to the south, but with 6
or 10 db fading, that will never be noticed.
Just my opinion.
Ken WA8JXM
On 1/13/19 3:07 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
>
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> 541-761-1103
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