On Nov 20, 2013, at 1:38 AM, Jeff Blaine wrote:
> For the antenna, dump the open wire and the shack mounted tuner. Get a
> remote tuner which can be mounted at the dipole feedpoint. Open wire feeders
> are finicky about balance and if you have things near this line, it will
> disturb the balance - and result in feedline radiation.
Not only is a perfectly balanced feedline an issue in minimizing radiation, but
the antenna itself has to be perfectly balanced AFAIK. One side can't be
closer to the ground than the other side, can't be closer to other antennas,
can't be closer to a tower or other metal structure, etc. If you start out
with an unbalanced antenna, the feedline can't be truly balanced either.
Ken WA8JXM
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