[TowerTalk] weight and sq. ft antenna limits on rohn 25 and 45

W0MU Mike Fatchett w0mu at w0mu.com
Sun Mar 29 17:04:12 PDT 2009


I wish I had crankups every now and then.  I am only 44 and each year tower
climbing becomes less interesting.  Guyed or self supporting towers offer
other advantages such as side mounting.

It really depends on your budget and what you expect to put on the towers
and what you hope to do with the towers.

Good luck with your project.

Mike 


CC Packet Cluster W0MU-1
W0MU.NET or  67.40.148.194

"A slip of the foot you may soon recover, but a slip of the tongue you may
never get over." Ben Franklin 



-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of RICHARD SOLOMON
Sent: Sunday, March 29, 2009 5:37 PM
To: TowerTalk
Subject: Re: [TowerTalk] weight and sq. ft antenna limits on rohn 25 and 45


Crank-ups have the advantage (some of them) of being able to tilt

over. Makes antenna maintenance much simpler. You can't do that

with a guyed tower and not many self-supporting towers tilt over.

 

There are some Aluminum ones that tilt over, but they get as

expensive as the crank-up.

 

73, Dick, W1KSZ
 
> From: K7LXC at aol.com
> Date: Sun, 29 Mar 2009 19:25:03 -0400
> To: towertalk at contesting.com; NE6V at roadrunner.com
> Subject: Re: [TowerTalk] weight and sq. ft antenna limits on rohn 25 
> and 45
> 
> 
> In a message dated 3/26/2009 5:55:05 A.M. Pacific Daylight Time, 
> towertalk-request at contesting.com writes:
> 
> > Can someone update me as to the limits for Rohn25 and 45 towers
> please.Max weight and how much antenna can each hold?
> 
> 
> I'm not sure if anyone addressed your question. It looks like you need 
> a Rohn catalog. There are cd versions around (I'm sure a TT'er could 
> get one to you) and also there are some online catalogs available.
> 
> To answer your question, I've never seen a max weight figure for any 
> tower. They use a combination of antenna area and windspeed to come up 
> with a tower loading figure. (And I think you meant how much each 
> "tower" can hold.)
> 
> 
> One thing to keep in mind is that for 45G, Rohn has already deducted 8 
> square feet for a "symmetrical mount" at the top of the tower so you 
> can add it back in for ham radio loading purposes. This doesn't apply 
> for 25G
> 
> 
> > Are these the best of the non crackups or which other(s) can anyone
> suggest?
> 
> 
> Crank-ups are the most expensive tower structure so if you want to 
> spend the most dollars for your tower, that's the way to go. Otherwise 
> your decision is probably between a guyed tower and a self-supporter.
> 
> 
> Cheers,
> Steve K7LXC
> TOWER TECH
> 
> 
> **************Feeling the pinch at the grocery store? Make dinner for 
> $10 or less. 
> (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001)
> _______________________________________________
> 
> 
> 
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