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Date: | Sun, 29 Nov 2015 17:07:12 -0500 |
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Mike,
Lowell W8QIY from this group has a 6 band hex from this company. He
had tried the optional low band add on, but wasn't pleased and returned
it. I think it was a terminated folded dipole (TFD) that gave low swr
on 80 - 40 meters, but like any good dummy load, it had low swr and no
signal. This was with the standard hex spreader length.
To add the full size 40 meter elements as in the model you mentioned,
makes it a monster. I'm not sure something like this would last very
long in your area. Six 21 foot long fiberglass poles flapping in the
wind may not last long, especially when loaded with ice and snow.
As for performance, it is still just a close spaced 2 element antenna.
Probably not fair to compare to antennas with more elements, or better
spacing.
The height of this monster would be 60 inches as you thought. The 5
or 6 element hex is around 30 inches high, depending on where you are
measuring from.
There are some people tinkering with hex beams to add 30 or 40 meters by
using a trapped or loaded dipole, which doesn't require as much
additional spreader length. Of course, just a dipole and no gain.
I remember reading something from a guy in England doing this. A
google search might kick it up.
73, Steve KW3A
On 11/29/2015 4:19 PM, Michael Ryan wrote:
> Hi all:
> For those of you running hexs, do you know about this antenna from Radio
> Waves out of St. Louis?
> Its 42 feet in diameter and there's a height of 60, not sure if thats feet
> or inches and it weighs at 36LBS. Not knowing what a hex looks like, is it
> possible to have this beam being 60 feet high and how practical would it
> be? I think the standard 5 band hex is probably just around 25 or so inches
> so its likely the height of the barrett is probably 60 inches.
> It costs 1500USD again, practical or would 1 be better served with a 5 band
> hex for 600USD and add a 40M rotatable dipole for another 2 or 300? I'm
> wondering if the 40M portion of the barrett would have the same performance
> as say a Mosley 67 pro or Steppir's trombone element?
>
> 73:
> Mike DE VO1AX
>
> Sent with AquaMail for Android
> http://www.aqua-mail.com
>
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