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
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Mpridesti via TowerTalk<mailto:towertalk@contesting.com>
Sent: Monday, December 16, 2019 10:47 AM
To: K9MA<mailto:k9ma@sdellington.us>
Cc: towertalk@contesting.com<mailto:towertalk@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@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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>
>
> --
> Scott K9MA
>
> k9ma@sdellington.us
>
> _______________________________________________
>
>
>
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