Straying somewhat afield from the original topic...
G0EVY has a full size 2 element 80m beam (think about that for a minute). I
forget what he said it weighs, but somewhere north of 3000#.
He bought a used truck mounted crane with a 150' boom that the antenna is
suspended from. If you look at his property on Google Earth, it's VERY visible
from the satellite picture.
Al
AB2ZY
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Grant Saviers
Sent: Thursday, July 14, 2011 10:27 PM
To: Máximo EA1DDO_HK1H
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] Self-supported tower designs
A used boom lift might be a good alternative to building a tower. I've been
tracking the used market and they go for $10k to $15k, used in good condition
for 50-60 footers. (About the installed cost for a 72' crank
up) Generally, they can handle 500# loads at full extension at 45 degrees,
some are even rated 1000#. So, my educated guess is a pretty big tribander
straight up is no sweat on a few feet of mast. Of course, it's pretty easy to
work on the antenna and bring it down for a storm or hurricane.
Think of the power of the built in rotator! And they are a lot of fun to run,
put antennas in trees, fix your roof, paint the house, etc.
Might also be an answer for hams with tower restrictions - :-) :-) :-)
Wherever there is multistory construction there are a lot of them.
Several on ebay and craigslist most all the time.
Grant
KZ1W
On 7/14/2011 12:38 PM, Máximo EA1DDO_HK1H wrote:
> Hi all,
>
> I am thinking to build a self-supported tower for my HK1H´s station.
> The tower could be around 25 meters high. Four sides Thinking in
> something like this;
>
> http://3.bp.blogspot.com/_umpsa6tUB2I/SoPi1PjpbtI/AAAAAAAAABk/9DQ2BrH3
> jek/S660/PANORAMICA.JPG
>
> or this one;
>
> http://farm1.static.flickr.com/98/383631062_89cc03d2f0.jpg
>
> What I need is a design layout to know what size pipes to use.
> Anyone knows where can I found them?
>
> Thanks
>
> 73, Maximo - EA1DDO& HK1H
>
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