I feel it necessary to say that I DID tie off my coax
at each coax arm on my former crank-up (72 footer, 4
sections). It's not rocket science to get it right.
Each arm had a small coax loop to allow a
little "slop" in the measurements. Advantages include
less strain (OK, it's not THAT important) on the top
tape/tie job (and the coax in its vicinity), less
chance for snags on the way up or down (all coax
moving up and down is already airborne), and no coil
of coax on the ground to have to move/mow around.
73 Mike N2MG
On Tue, 24 July 2001, "Frank C. Travanty" wrote:
>
>
> Ditto,
> I've used free standing crank ups for over 30 years, and never taped any
> lines where they can "slide" thru the hoops. I try to do a good job of
> strain relief at the top hoop - usually use a layer or two of old water
> hose over the cables, and electrical tape to form a gradual loop before
> going vertical. When the tower is lowered, I just toss the excess over a
> nearby bush.
>
> Frank W9JCC
>
> On Mon, 23 Jul 2001 16:42:33 -0400 Jeff Singer <k2kv@reallybig.com>
> writes:
> >
> > Why tape them up? Personally, I would just let the coax slide
> > through the
> > loops.
> >
> > When the tower comes down and goes up repetitively, the coax will
> > BEND
> > uncomfortably at the tape points, causing inevitable eventual damage
> > and
> > failure.
> >
> > Just my opinion, of course.
> >
> > 73 de Jeff K2KV
> >
> > -----Original Message-----
> > From: owner-towertalk@contesting.com
> > [mailto:owner-towertalk@contesting.com]On Behalf Of John Farber
> > Sent: Monday, July 23, 2001 4:19 PM
> > To: towertalk@contesting.com
> > Subject: [TowerTalk] Re: US Towers 472 coax question
> >
> >
> >
> > I just got my US Towers 472 MDP tower up, with a 31 L Tennadye log
> > for
> > 50-1300 at the top and a KLM 6M7LB yagi below it. I am trying to
> > figure the
> > distance between coax arms that the coax should be taped to. I can't
> > seem to
> > locate that spec in the US towers material. In other words, when the
> > tower
> > is fully extended, what is the distance between consecutive coax
> > arms?
> > Thanks, 73, John KG6I
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