Great site!
One question - it says 'steps engineered by K5RA' - any details? I'm
thinking about something similar. What did he use?
Thanks!
-Brian n8wrl
> -----Original Message-----
> From: owner-towertalk@contesting.com
> [mailto:owner-towertalk@contesting.com]On Behalf Of K7LXC@aol.com
> Sent: Monday, November 08, 1999 11:58 AM
> To: towertalk@contesting.com
> Subject: [TowerTalk] New erection
>
>
>
> Howdy, TowerTalkians --
>
> You might want to take a look at the new tower and antenna
> system of
> Tim, K5RA. It's 80 feet of Rohn SSV/RTP with a C31-XR and
> full-sized 2L 40M
> yagi. The work was done by a crane.
>
> Here's what he had to say about it:
>
> >> I second your endorsement of the concrete vibrator. Since my hole was
> 11.5 ft sq and 4.5 ft deep (mat base for Rohn SSV tower), and had 1000
> pounds of re-bar in it (44 pieces of #78 bar, 11 ft long), plus the
> steel template and tower base bolts suspended from a wooden bridge over
> the hole, I did not have complete flexibility of where the concrete
> could be dumped. Also, I ordered my concrete with low slump (it was
> really "stiff") because of the size of the pour.
>
> I hired a profession placing crew, and they had two vibrators. The
> concrete went in and made a pile about two feet high and five feet
> across at the base. When the man threw the vibrator into it, the pile
> melted like butter in a blast furnace!! The vibrators made the concrete
> flow over and around the re-bar, and into every extreme of the hole. No
> shovelling or poking with 2x4s was required.
>
> Fortunately, I could have the three trucks drive up to the hole site, so
> I did not have to go with buggies or pumps.
>
> By the way, a 126-ft huydraulic motor crane is a great way to put up a
> tower. If you are interested, photos of my tower party are available at
> http://www.dxer.org/k5ra.html. Eighty-ft tower, 22 ft mast, and two
> full-size beams up in two hours and five minutes (tower off the blocks
> to climber off the tower). >>
>
> Nice job and nice installation.
>
> Cheers, Steve K7LXC
> Tower Tech
>
> --
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