This was presented earlier this year at the Dayton Hamvention Antenna forum.
You can see all 57 slides about this antenna by going to http://www.k3lr.com
Click on Dayton Antenna Summary 2006
73!
Tim K3LR
K7LXC@aol.com wrote:
> Howdy --
>
> I don't know if it's been mentioned before but I was at the SteppIR
> factory yesterday and saw an engineering drawing and photos of the K9LTN
> array.
> It's a 270' rotating tower with an "H" frame on it with 4 over 4 over 3
> element SteppIRs on EACH side of the H. The antennas have azimuth AND
> elevation
> rotation. I heard that he was able to bounce HF signals off the moon ala
> W0UN.
> It is a truly amazing installation. Apparently they used Rohn 55 and 45 for
> the vertical parts of the H. The vertical parts of the H are 100 feet! It has
> over 21 dBi of freespace gain.
>
> I went to the website - _www.k9ltn.com/_ (http://www.k9ltn.com/) - to
> look at the photos and they're poorly edited and don't show any finished
> shots
> that I could see.
>
> I think that this is probably the most expensive single tower
> installation in the country. Everything except the antennas was custom
> designed and
> built and professionally installed. I'd estimate that its cost was over
> $100k.
>
> If anyone has pictures of the finished array, please let us know where
> they can be viewed.
>
> You've got to admire someone with that kind of vision.
>
> Cheers,
> Steve K7LXC
> TOWER TECH
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>
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