I assume that you are looking for a multiplier antenna. I believe that
K3LR, W3LPL, etc use a four square for each band. Hopefully they can
respond with the details; I wonder how far away it needs to be from the
main TX antenna and if any filtering or receiver protection is needed.
GL,
John KK9A
To:"Tower and HF antenna construction topics." <towertalk@contesting.com>
Subject:[TowerTalk] vertical antenna advice needed
From:PY1NB - Felipe Ceglia <felipeceglia2@gmail.com>
Date:Fri, 14 Jun 2013 09:06:43 -0300
List-post:<towertalk@contesting.com">mailto:towertalk@contesting.com>
Hello folks,
I'd like to hear your opinions about this topic.
I am looking for an antenna (or more than one) for 10/15/20m that has the
following characteristics:
- vertical polarization
- smallest possible horizontal far field lobe
- "good" forward gain (at least comparing to a single element vertical)
- greatest possible front to back ratio
I was thinking about using:
- a tribander tilted 90 degrees
- 2 element end phased array of:
- vertical dipoles
- sitting on the ground verticals (with or without radials?)
- multiband verticals (using W9AD phasing line to switch between bands)
- 5/8th wave verticals (at least for 10m, it would be easy to convert CB
antennas)
- a 4 square
These antennas would be used for RX only.
Any suggestions, anecdotal comments, field experiments?
73 and thank for your time,
Felipe Ceglia - PY1NB
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