[TowerTalk] Mixing Rohn 20G and 25G

[Steve Maki]

Here's the thing (well in my mind anyway). Just because Rohn's *vision* 
for 20G may have been 30', a house bracket and TV antenna, and for 25G 
it was guyed applications up to 190', doesn't mean that there is a world 
of difference in the capabilties, certainly nothing like those two 
visions seem to indicate. Yes 25G is somewhat stronger, but to state 
that 20G isn't even *suitable* for guying (in a ham application) because 
Rohn didn't envision it to be used that way is a distortion of the 
mechanics involved. In a legal sense an engineer would need to do the 
analysis because Rohn never did it, but in my backyard I'd bet that 20G 
can do 75% of what 25G can do, because I'm comparing apples to apples.

Except I swore off of the stuff decades ago because it's a pain to climb :-)

-Steve K8LX

On 7/2/2014 10:43 AM, Wayne Kline wrote:

>   My Bad    :(   I meant to say  R-20-G   ( Still on ESDT time and it was   AZ  time = 1:00PM to me  )
>
> 25-G is a horse of a different color  ...

>>> But if my gray matter serves me well  R 25- Gg is not suitable for guying
>>> let alone two levels .
>>
>>
>>
>> 25g is usable under Rev G 90mph up to 190ft with 5 levels of guys.  Lightly
>> loaded yes but usable.  There are many 190ft AM broadcast and lightly
>> loaded 2-way towers that have been standing for 30+ years with 4 levels of
>> guys.