[TowerTalk] Long span lanyard for wire antenna

[N4ZR]

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 at verizon.net>
>> Sent: Wednesday, April 21, 2021 6:25:13 AM
>> To: 'john nistico' <electric911inc at hotmail.com>; 'towertalk' 
>> <towertalk at 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 at contesting.com> On Behalf Of john 
>> nistico
>> Sent: Tuesday, April 20, 2021 9:01 PM
>> To: towertalk <towertalk at 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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