If you sign up on yahoo SteppIR group and look in the picture section, under
N4ZZK. He has 2
versions and a power point presentation. I have my version under my old call
WA2SRY. I just sent
some pictures to Aluma Towers, I was trying to find the part number for the SS
hinge they use for
there tilt over. This is what I used for my plate. They wanted to evaluate the
assembly for possible
manufacturing in the future.
I can send pictures. This approach won't work with multiple antenna's on a
mast. I used a very
simple approach 2 aluminum plates and a hinge. I haven't found the need for any
latching mechanism,
there hasn't been any "lifting" during any wind. If we had any hurricane winds
I would turn the boom
plate into the wind.
Larry K1ZW
Durham, NC
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Mark
Robinson
Sent: Saturday, September 01, 2007 10:20 PM
To: Dan Hearn
Cc: TowerTalk@contesting.com
Subject: Re: [TowerTalk] Crankup towers-- tiltover
Where did you get the tilt heads from?
thanks Mark N1UK G3ZZM
----- Original Message -----
From: "Dan Hearn" <dhearn@air-pipe.com>
To: "Jim Jarvis" <jimjarvis@optonline.net>; <towertalk@contesting.com>
Sent: Saturday, 01 September, 2007 10:16 PM
Subject: Re: [TowerTalk] Crankup towers-- tiltover
> Interesting idea Jim. Come to think of it, I have tilt heads on all of my
> yagis so could tilt the Yagi over, tie it in that position, then tilt the
> tower over if desired. I still think it is simpler to just lower the yagi
> vertically and avoid unbolting and tilting the tower. To each his own, Hi
> 73, DAn, N5AR
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com]On Behalf Of Jim Jarvis
> Sent: Saturday, September 01, 2007 6:08 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Crankup towers-- tiltover
>
>
>
> On my Rohn 45G foldover in Vermont, I fabricated a bracket
> system which kept the yagi horizontal,while the tower folded
> over.
>
> This allowed full lowering, and prevented skewering the roof
> when the tower folded over, plus walking height maintenance.
>
> The idea was published in one form, in RadCom, back in the late
> 90's. I took pics and wrote an article on my variant of it,
> for QST, but never submitted it for publication. Still have
> the pics,somewhere, I believe.
>
> If TT feels it's worth publishing, as a concept, I'll
> submit it to QST.
>
> If anyone needs specific details/pics, I'll look for
> same. I know where the prototype is, and can recover
> it, if needed.
>
> N2EA
>
>
> Jim Jarvis, President
> The Morse Group, LLC
> 732 548 5573 office
> www.themorsegroup.net
> results@themorsegroup.net
>
> Strategic Planning and Success Strategies
> for Sales Professionals and Entrepreneurs.
>
> Sales Excellence Series beginning September 24, 2007
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|