[TowerTalk] Rotor location

[Rex Turvin]

My mast is 2" OD 6061 AL 12'  The antenna is a Force 12 "DX'er" 15/17/20m tribander  56lbs and 8.51 sq ft windload with future plans to install a 10/12m antenna above it.
73 NR6M


 
ex: KF7NMD


Sincerely,


Rex Turvin
www.nr6m.com



________________________________
 From: Wayne Kline <w3ea at hotmail.com>
To: Rex Turvin <turvin2009 at yahoo.com>; "towertalk at contesting.com" <towertalk at contesting.com> 
Sent: Tuesday, November 26, 2013 1:04 PM
Subject: RE: [TowerTalk] Rotor location
 


My first question to you is A: what size mast are you using  both OD and Length  B: what antenna do you plan to install ?
 
Why    That top section can be used with the rotor shelf on the top set of rungs of the Rohn 25. 
But that's ok if were talking about a C-3,  A-3   TA 33 ect.      but if your going BIGGER  the problem comes when it's time to repair or replace the rotor
 
 The little stub  is hard to keep centered by your TB3 ....  if you lower it far inside the #25   the cross rungs  can become a problem.  
 
Wayne W3EA  
 

> Date: Tue, 26 Nov 2013 11:44:01 -0800
> From: turvin2009 at yahoo.com
> To: towertalk at contesting.com
> Subject: [TowerTalk] Rotor location
> 
> I now have my Rohn 25 tower assembled awaiting my concrete to cure before erecting.
> I am getting ready to mount my rotor. At the top of the Rohn 25 sections I am using A BPL25G thrust bearing assembly section which has the top plate approximately 18" above the 1st section of cross members. My plan is to place the rotor at the 2nd set of cross members on the top section.
> Is this a good distance from the thrust bearing? If not, how much spacing do I need and why?
> Thank you in advance for the advice. Wanting to make sure I do this as best as possible.
> 73 NR6M
> 
> 
>  
> ex: KF7NMD
> 
> 
> Sincerely,
> 
> 
> Rex Turvin
> www.nr6m.com
> _______________________________________________
> 
> 
> 
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