[TowerTalk] 45G and guys

[Wayne Kline]

Ignacy,

According to the BIBLE (Rohn) product catalog  @ 100 ft.  of R45- Zone B 40FSF = three layers of  1/4 EHS. = 6650 lb  tensial strength
So IMO PhillyStran  HTPG 6700 should be used for all three levels of guys.   IF you chose to use ¼ EHS   the info for none resonante
http://ve3vn.blogspot.com/2017/05/planning-around-guy-wire-interactions.html   info on lengths  on this link.

I have advised hams who do not have  ANY material on hand  as a sugjestion to go  to R-55 at 100 ft level.
Why you only need TWO levels of Guys and If you  compare the cost of  TOWER . EHS guy wire 50s insulators and Crosby  cable clamps (6) for each insulator and (3) for each   or substute PLP line products BIG grips  .    Then the two levels you need with R-55 end use EHS with 502 insulators  and cable clamps on  R-55 and the Phillystran and the PLP big grips 18  and 9 conventional  PLP ¼ EHS  Big grips 9 502 insulatore.

It’s all about the numbers   BUT imo the installation would only be built with ¼ EHS and only 6700 Phillystran.

My .02


Wayne ,W3EA
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From: Mpridesti via TowerTalk<mailto:towertalk at contesting.com>
Sent: Monday, December 16, 2019 10:47 AM
To: K9MA<mailto:k9ma at sdellington.us>
Cc: towertalk at contesting.com<mailto:towertalk at contesting.com>
Subject: Re: [TowerTalk] 45G and guys

In an off list email, I advised pretty much the same.

Happy Holidays Scott!

Regards,

Mark, K1RX


> On Dec 16, 2019, at 10:43 AM, K9MA <k9ma at sdellington.us> wrote:
>
> I'd recommend Phillystran for the top guys, but EHS the first few feet from the tower, and up about 15 feet from the ground. The former protects against something getting dropped from the tower, the latter from vandals and other animals. I'd probably do that with the middle guy, as well. Otherwise, be sure to break it up with insulators into non-resonant lengths.
>
> For shunt feeding, all the guys definitely need Phillystran or an insulator near the tower. Even the lower guys, though, should be broken up into non-resonant lengths with insulators.
>
> 73,
> Scott K9MA
>
>
>> On 12/16/2019 09:12, Ignacy Misztal wrote:
>> I want to have a 100ft 45G installed on my new property. It will hold JK
>> Mid Tri 40 on top. I plan on adding a Yagi with a  swinging gate at lower
>> level later, and perhaps shunt loading for 160 and 80m.
>>
>> My installer wants to use 3 sets of EHS wires. He is ready to substitute
>> the top one with Phillistran. So here are my questions:
>>
>> Are EHS guys likely to cause interactions with top and medium beams?
>> Do EHS guys compromise tower for 160M shunt feeding?
>> Do I need 3 sets of guys?
>> Should I move to Phillistran?
>> Is Phillistran 7000 lb on top and 4000 at bottom good enough?
>>
>> The installer wants to build the tower with the beam on top. Have the beam
>> at 3 ft, then raise to 13, 23,....Perhaps that's why 3 sets of guys. The
>> location is in E GA, with relatively low wind.
>>
>> Ignacy, NO9E
>> _______________________________________________
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>>
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>
>
> --
> Scott  K9MA
>
> k9ma at sdellington.us
>
> _______________________________________________
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