Hello Patrick:
I would not suggest you do either of these choices. The Rohn 25 tower is
heavy and the base insulator has to be able to support the tower and the
aluminum stinger down force and wind loads. I suggest you consult with Rohn
and follow their advice 100%.
The Hy-Tower insulators are made to be used with specific tower which is
much different than Rohn 25. Please do not try this.
You have to be very careful with tower installations as you are risking your
life and those working around you.
I would suggest you consult with a local mechanical professional engineer
before proceeding with any of your tower plans.
73,
Tim K3LR
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Patrick Greenlee
Sent: Thursday, December 26, 2013 2:39 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Insulating towers
Any thoughts on insulating a tower? I have some Rohn 25 that I want to use
to make a home brew version of a Hy-Gain Hy-Tower multi-band vertical. I am
considering two approaches:
1. Buy a plastic cutting board to cut up for material to home brew
insulators to be electrically between the tilt base and the tower proper. (I
have a friend with MS Mech Eng and 35 years hands on experience who will, if
asked, consult on this or help me design it.)
2. Pay the $ and buy 3 insulators from Hy-Gain as replacement parts for a
HY-Gain Hy-Tower antenna.
Any thoughts on item 1 or other ideas to git 'er done.
Patrick NJ5G
-----Original Message-----
From: Jim Lux
Sent: Thursday, December 26, 2013 12:58 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Raising Towers
On 12/26/13 10:41 AM, Hector Garcia,XE2K wrote:
> Some very interesting ideas, very ingenious and a lot to avoid
> I got scare with his double braid rope as lanyard @200ft tower
Well, if you're raising it in your (big) backyard, and you're aware of
the risks, then you can use dental floss if you think it will work.
> not FAA lights on 200ft towers?
That would be a problem.. Maybe his "200 foot" tower is actually 199
ft, 6", and exempt.
> those bungee cords as insulators or for tension ?
I'm thinking some sort of shock absorption.
> the anchor in the wash
> no insulators in the guy wires.
if the guy doesn't happen to be "the wrong length", then there's no
particular reason for insulators (unless you're feeding the tower as the
radiator)
> some good things to use and some ones to avoid from my point of view
> be safe
>
_______________________________________________
_______________________________________________
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
|