Re: [TowerTalk] Long span lanyard for wire antenna

[N4ZR <n4zr@comcast.net>]

Amen to that - I can't remember the actual trig formula, but I do know 
that as sag approaches zero, tension on the caternary approaches 
infinite, rapidly.  Thanks to K1TTT for that insight.
73, Pete N4ZR
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On 4/21/2021 9:04 AM, Steve K8LX wrote:
> Rather than be tempted to use high enough tension where turnbuckles 
> are needed, let it sag a little, give up a few feet of height - your 
> tower guy systems will appreciate it.
> -Steve K8LX
>
> On 4/21/2021 8:34 AM, john nistico wrote:
> > No pulleys it will span 350 and attached to the top of the tower most 
> > likely with turnbuckles.
> > From: Jon Zaimes <jz73@verizon.net>
> > Sent: Wednesday, April 21, 2021 6:25:13 AM
> > To: 'john nistico' <electric911inc@hotmail.com>; 'towertalk' 
> > <towertalk@contesting.com>
> > Subject: RE: [TowerTalk] Long span lanyard for wire antenna
> >
> > John,
> >
> > I use 3/16" double braided polyester to support the four T-shaped 
> > parasitic
> > elements in my 160m K3LR array. The longest span is about 250 feet, 
> > plus 100
> > feet+ running to the ground so these can be lowered easily.
> >
> > Most of the ropes were purchased about 22 years ago from the bargain 
> > bin at
> > BoatUS/West Marine. They had slight imperfections.
> >
> > The antenna wires are no. 12 insulated stranded THHN. I've had a 
> > couple of
> > wire breaks over the years but none in the ropes.
> >
> > 73/Jon
> >
> > Jon P. Zaimes, AA1K
> > Tower climber for hire
> > http://www.aa1k.us/
> > Cell: 302-632-2353
> >
> > Reviews of AA1K tower work on eham website:
> > http://www.eham.net/reviews/detail/12922
> >
> > Hug your favorite tower every day, and always stay connected to it.
> >
> > -----Original Message-----
> > From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of john 
> > nistico
> > Sent: Tuesday, April 20, 2021 9:01 PM
> > To: towertalk <towertalk@contesting.com>
> > Subject: [TowerTalk] Long span lanyard for wire antenna
> >
> > So my towers are up and aluminum going on. The 4 towers are spaced 
> > 350 ft
> > apart. Any suggestions on what I can run from tower to tower for wire
> > antenna supports?
> > NY6DX
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