Using steel helps, but the wire still forms a catenary
that makes it behave as if it had some stretch.
Rick N6RK
On 7/28/2012 9:23 PM, Mark Pride wrote:
> Rick,
> The link from the top of the derrick to the tower (lifting component) is
> a steel cable so practically no stretch here.
> Regards,
>
> Mark, K1RX
> *From:* Richard (Rick) Karlquist <richard@karlquist.com>
> *To:* Hector Garcia XE2K <j_hector_garcia@sbcglobal.net>
> *Cc:* Bud Kozloff <W1NSK@Hotmail.com>; towertalk@contesting.com
> *Sent:* Saturday, July 28, 2012 11:18 PM
> *Subject:* Re: [TowerTalk] IARU Team Stations
>
> This is obviously a successful set up, but one thing
> that I don't like is that the derrick is rigidly coupled
> to the tower. I tried this years ago and discovered that
> if the rope between the tower and derrick has any stretch
> in it, you can end up with a lot of strain on the
> connection between the pieces. What I do instead is
> have independent pivots for the tower and derrick.
> Then the ropes are non critical.
>
> Rick N6RK
>
> On 7/28/2012 1:03 PM, Hector Garcia XE2K wrote:
> > take a look
> >
> http://s1266.photobucket.com/albums/jj529/wrtc2014/WRTC%20Station%20Test%202012/K1RX%20Photos/
> >
> >
> >
> > also facebook
> >
> > http://www.facebook.com/wrtc2014
> >
> >
> > J.Hector Garcia XE2K / AD6D
> > Mexicali B.C DM22fp
> > P.O.Box 73
> > El Centro CA 92244-0073
> > http://xe2k.net
> >
> >
> >
> >
> >
> >
> >
> > ________________________________
> > From: Bud Kozloff <W1NSK@Hotmail.com <mailto:W1NSK@Hotmail.com>>
> > To: towertalk@contesting.com <mailto:towertalk@contesting.com>
> > Sent: Sat, July 28, 2012 12:52:36 PM
> > Subject: [TowerTalk] IARU Team Stations
> >
> > Thinking of a "temporary" 35ft 25G Setup w/A4S on top similar to what
> > they are doing for the 2014 temporary team stations.
> > How are they installing the towers? Actually pouring foundations?
> > Putting a 10ft section in a 5ft hole and digging it out afterwards?
> > How are they installing the guys? Any info would be appreciated.
> >
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
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> > TowerTalk@contesting.com <mailto:TowerTalk@contesting.com>
> > http://lists.contesting.com/mailman/listinfo/towertalk
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com <mailto:TowerTalk@contesting.com>
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> _______________________________________________
>
>
>
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