[TowerTalk] Brand new and appreciate help---Glen Martin tower & more..

[deuhs@earthlink.net]

I have the 17 foot GM Tower.  It is very strong!  I modified mine by ordering a custom rotor shelf that mounts at about the 10 foot level, which puts the rotor at a much better position than the 30 inches or so from the top. 

I have a F12 C4SXL on top with no problems.

I also put two, 6 foot - 2 by 6 in boards across my rafters and used 18 inch threaded rod to mount by tower base. The 2 boards spread the load rather well. My garage was built in the 1960's with pretty hefty wood so it is solid. It has not moved in over a year.

I am very careful when I climb the tower (yes, use a harness) and inspect all base bolts before doing so...

Greg
k0pj/9
Wisconsin  

-----Original Message-----
From: K7LXC at aol.com
Sent: Dec 1, 2005 12:17 PM
To: towertalk at contesting.com, cary18 at pacbell.net
Subject: Re: [TowerTalk] Brand new and appreciate help---Glen Martin tower &	more..

 
In a message dated 11/29/2005 6:48:20 P.M. Pacific Standard Time,  
towertalk-request at contesting.com writes:

>  Just got a general license.  
 
    Congratulations! Hope you have as much fun as I  have. 
 
>  Appreciate all the help that has been shown me.  I want  to put up a 3 
element SteppIR on top of a Glen Martin 9 foot or 17 foot  roof-top tower.  The 
tower will be going onto a one story home (60 years  old) in Los 
Angeles---E.I.A. 70 M.P.H. I am getting a Yaesu G 1000 SDX  rotator.  I have been told it's 
a good (very good) idea to guy the  tower.  I also have an Icom 756 Pro2.  
Thanks everyone for any and  all help....73.....Cary  KI6BMM



    I've installed a bunch of the GME 9-footers and  they're great. The one 
thing I do is to use all-thread thru backing 2x4's in the  attic. GME wants you 
to use lag screws screwed into a roof joist - it's not  very practical and 
depends on the lag screw for holding power. By using backing  plates in the 
attic and all-thread you spread the forces over a much larger area  of your roof 
than the lag screws. 
 
    (For anyone quibbling about my violation of the LXC  Prime Directive to 
"DO what the manufacturer says", this comes under the heading  of "Improvements 
and Over-Engineering".)
 
    I'd suggest that the much larger overturning moment  from the 17-footer 
wouldn't be worth the small increase of  wavelength-above-ground height of the 
antenna. 
 
Cheers,
Steve   K7LXC
TOWER TECH 
_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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