[TowerTalk] Self-supported tower designs

[K8RI on TT]

On 7/14/2011 11:09 PM, Al Kozakiewicz wrote:
> 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#.

I think he's fed it a bit as IIRC it's now 2L on 160, 3 or 4 on 75 
(reversable) and 5 or so on 40. I'd have to go out to the shop and check 
the log to be sure.    He's on 7.160-7.175 give or take around 
0700-0800Z quite often ragchewing. Then working a few stateside 
stations.  Sounds like a local except for the accent.  I've only talked 
to him on 40.

I think he said he picked up the crane/lift/hoist/whatever surplus.
>
> 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.

A search on his call and followed by antenna will bring up quite a few 
photos.  You'll know you have the right ones when you see the yellow 
boom truck. <:-))

Some one asked him what he used for a rotator and he replied it was 
something like a 140HP diesel or the name of the truck builder.

73

Roger (K8RI)
>
> Al
> AB2ZY
>
> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-bounces at contesting.com] On Behalf Of Grant Saviers
> Sent: Thursday, July 14, 2011 10:27 PM
> To: Máximo EA1DDO_HK1H
> Cc: towertalk at 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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