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/9DQ2BrH3jek/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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