Rohn 25G question
 

I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

Never heared of tapered 25G.
Sounds like two identical sections of a free-standing tower.
Or a Rohn QA reject.
73, H.

"Cecil Moore" wrote in message
t...
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

On Sun, 7 Jan 2007 14:44:59 -0600, "H. Adam stevens, NQ5H"
wrote:
Sounds like two identical sections of a free-standing tower.

Sounds more like a torqued tower section.

73's
Richard Clark, KB7QHC

Rohn 25G question
 

Cecil Moore wrote:
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

You really need to have a man to man discussion with the seller of the
tower sections.. Start by marching into his establishment and firing a
couple of rounds of Colt 45 into the ceiling... This will set the tone
for the discussion to follow...

denny / k8do

Rohn 25G question
 

Denny wrote:
You really need to have a man to man discussion with the seller of the
tower sections.. Start by marching into his establishment and firing a
couple of rounds of Colt 45 into the ceiling... This will set the tone
for the discussion to follow...

I got them for $20 each used from an individual ham in
AZ about ten years ago. Don't remember his name or call.
I think I can use a car jack to bring them back to the
specified spacing. I should have tried the fit while
they were on the ground rather than 40 feet in the air. :-)
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

"Cecil Moore" wrote in message
. net...


I got them for $20 each used from an individual ham in
AZ about ten years ago. Don't remember his name or call.
I think I can use a car jack to bring them back to the
specified spacing. I should have tried the fit while
they were on the ground rather than 40 feet in the air. :-)
--
73, Cecil http://www.w5dxp.com

Same thing happened to me this summer. I put up 4 sections by myself and it
went fine. Then with some help on the ground pulling up the next 2
sections, the leggs did not drop in. I did not measuer them but the leggs
did not seem to match by a small ammount. I used a home made version of the
Tower Jack to force the sections together and then pull them down to the
bolt holes matched. Actually had to drill out the holes as they did not
match exectally either. Not much off, maybe 1/8 of the hole diameter.
Could not get the holes to line up even with a big drift or punch.

73 de KU4PT

Rohn 25G question
 

Ralph Mowery wrote:
Same thing happened to me this summer. I put up 4 sections by myself and it
went fine. Then with some help on the ground pulling up the next 2
sections, the leggs did not drop in.

I have two sections with identical 11" spacings,
1/4" out of spec. It's too consistent to be an
accident. I wonder if a batch was manufactured
out of spec?
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

I expect that the support bracing is bent and if you straighten it the
problem will go away. Sounds like someone was a little rough with these
sections.




Cecil Moore wrote:
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.

Rohn 25G question
 

Ron wrote:
I expect that the support bracing is bent and if you straighten it the
problem will go away. Sounds like someone was a little rough with these
sections.

Nope, the bottom of the tapered section is the
specified 11.25". Somewhere between the beginning
and end of the 4" tapered section is where the
problem occurs. And two sections are virtually
identical which would seem to rule out any
accident.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

Cecil,

Rohn 15 is tapered at the top of the sections to fit inside of the bottom
.... I don't recall the exact dimensions, but the top, tapered part should be
"concentric" with the bottom of the next section and fit inside.
(you may already know all of this and may be describing something different)

73,
Carl - wk3c

"Cecil Moore" wrote in message
t...
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

Carl R. Stevenson wrote:
Rohn 15 is tapered at the top of the sections to fit inside of the bottom
... I don't recall the exact dimensions, but the top, tapered part should be
"concentric" with the bottom of the next section and fit inside.
(you may already know all of this and may be describing something different)

The two pieces I have are not concentric and each
tapered part slants toward the middle at about 3
degrees rather than pointing straight out. The
slant is enough to cause the pieces not to fit
together.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

Sounds like a manufacturing defect - or they got tweaked somehow ...

Good luck - if you try to bend them to fit, you really should check for
cracks - including all of the bracing and connecting welds.

73,
Carl - wk3c

"Cecil Moore" wrote in message
et...
Carl R. Stevenson wrote:
Rohn 15 is tapered at the top of the sections to fit inside of the bottom
... I don't recall the exact dimensions, but the top, tapered part should
be "concentric" with the bottom of the next section and fit inside.
(you may already know all of this and may be describing something
different)

The two pieces I have are not concentric and each
tapered part slants toward the middle at about 3
degrees rather than pointing straight out. The
slant is enough to cause the pieces not to fit
together.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

In article ,
Cecil Moore wrote:

Ron wrote:
I expect that the support bracing is bent and if you straighten it the
problem will go away. Sounds like someone was a little rough with these
sections.

Nope, the bottom of the tapered section is the
specified 11.25". Somewhere between the beginning
and end of the 4" tapered section is where the
problem occurs. And two sections are virtually
identical which would seem to rule out any
accident.

Might be a Transistion Section, between Rohn 25 and 15.......

Rohn 25G question
 

You wrote:
Might be a Transistion Section, between Rohn 25 and 15.......

Don't know much about 15. Someone else suggested
that someone may have used three sections of
water pipe tied together at the top, for a top
section. I'll just have to bring them back in
spec before I try to install them again.
--
73, Cecil http://www.w5dxp.com

Rohn 25G question
 

"Cecil Moore" wrote in message
t...
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

I have one laying on the ground and all the sections are 11.25 except for
one and I know it got warped.

Jimmie

Rohn 25G question
 

"Cecil Moore" wrote in message
t...
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

You may have a 25T of 25TGIA tapered base.
These are 12.5 inches outside to outside on one and 12 inches on the other.

Jimmie

Rohn 25G question
 

"Jimmie D" wrote in message
...

"Cecil Moore" wrote in message
t...
I have two 10' sections of 25G where the spacing
between posts is the specified 11.25" at the bottom
but is only 11" at the top. These sections will not
fit together. Does anyone know anything about 25G
sections with 11" spacing between the upper posts?
The 11" spacing is too precise to be an accident.
--
73, Cecil http://www.w5dxp.com

You may have a 25T of 25TGIA tapered base.
These are 12.5 inches outside to outside on one and 12 inches on the
other.

Jimmie

OK, I have a 5ft base and it is tapered too, not as much as the 10 ft
section, about half as much.