I would agree with your conclustion Joe. The 4 square
does have the advantage of (almost) instantaneous
direction change and is a good alternative if high
supports are not available.
Place a 40M dipole at 80 ft and you will pick up another
dB or so over 60 ft. I worked my first 300 countries on 40M
using a rotary dipole at 80 ft (full size wire on bamboo poles)
mounted on the boom of a 2L Quad.
My CC 2L40 at 95 ft plays VERY well on CW but doesn't seem to
have the 'punch' I enjoyed with a full size 2L Delta Loop supported
by a 20 ft boom at 120 ft aimed at 60 degrees which covered all of
Europe, Africa, the Middle East, and the Indian Ocean, especially
on SSB. (The CC is tuned for the CW settings).
Tom N4KG
On Mon, 12 Nov 2001 "Joe Subich, K4IK" <w8ik@subich.com> writes:
>
>
> Tom,
>
> > I would expect, based on what I see here, that on 40 meters a
> > good high dipole could actually be a bit better for gain than a
> four square.
>
> Since I'm planning an antenna installation I did some modeling of a
> Cushcraft D-40 (half a 402CD) at 60 feet over poor ground (Diel
> Const
> = 10, Cond = 2 ... sandy Florida soil) vs a four square with 60
> on/in ground radials per element. The loaded dipole was about 2 dB
> better (at the same take off angle) than the four square (and a full
>
> size dipole would have been even better).
>
> The difference is enough for me to decide the four square isn't
> worth
> the effort on 40. One of the common loaded/shortened two element
> yagis
> looks the winner unless one is on an ocean beach.
>
> 73,
>
> ... Joe, K4IK
>
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