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.
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