[TowerTalk] EHS cable and torque bars

[Mike H]

...and for the short R45 installs too. The 40 and 50 ft Rohn setups 
specify a single 1/4 in EHS cable. Heights of 60 ft and above use a 
combination of 3/16 and 1/4 in EHS.  Sure is confusing!

Mike

On 6/9/23 21:36, Steve Maki wrote:
> Destroying the bracket? What are you talking about? 1/4" EHS is 
> SPECIFIED on tall R45's.
>
> -Steve K8LX
>
> On 2023-06-09 9:27 PM, Ron WV4P wrote:
>> When the Catenary weight of 1/4" EHS changes the angle of the torque 
>> bar to destroying the bracket VS resisting twist it all makes 
>> sense... Adding larger shackles compounds the issue.
>>
>> Likely not an issue with your short tower but worth a call to Rohn.
>>
>> Ron, WV4P
>>
>> On Fri, Jun 9, 2023 at 8:21 PM Steve Maki <lists at oakcom.org> wrote:
>>
>>     That's idiotic, or at least short sighted.
>>
>>     Use the biggest pin shackle that will fit in the torque arm, and 
>> 1/4"
>>     big grips (preforms) with thimble in the shackle. This makes it
>>     easy to
>>     remove a guy wire temporarily whenever needed.
>>
>>     As has been pointed out often, the torque arms don't do much for
>>     rotational resistance, but if you have them, use them. It makes a
>>     nice
>>     install.
>>
>>     -Steve K8LX
>>
>>     On 2023-06-09 8:34 PM, Mike H wrote:
>>     > I acquired some used Rohn 45G in very good shape and will be
>>     going up
>>     > 50 ft. Antenna will be stacked 2 x 9-el for 2m. I'm following
>>     the Rohn
>>     > engineering guidance very closely: base is a new R-SB45G buried
>>     in the
>>     > prescribed concrete block along with GAR30 guy anchors, also in
>>     > concrete. I have the older style guy bracket for 45G that has 
>> (very
>>     > expensive!) TB45D torque bars
>>     >
>> <https://www.3starinc.com/rohn_45g_torque_bars_for_use_with_guy_bracket_r-tb45d.html>
>>
>>     > along with several hundred feet of brand-new 1/4 in EHS for the
>>     guys.
>>     > According to the Rohn instructions, however, I can't use EHS cable
>>     > that's greater than 3/16 in:
>>     >
>>     > https://www.3starinc.com/manuals/ROHN_Torque_Bar.pdf
>>     >
>>     > This means I'd have to buy either smaller EHS cable or their
>>     newer guy
>>     > bracket that doesn't use torque bars. I'll do this if I have to,
>>     but
>>     > I'd sure like to understand why 1/4 in EHS is a deal-breaker for
>>     the
>>     > torque bars. QTH is north Florida so I want to make the setup as
>>     > storm-proof as practical. Any insight appreciated.
>>     >
>>     > Mike WB2FKO
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