[Boatanchors] Slightly OT: What is the optimum "twist ratio" in window-line

[D C *Mac* Macdonald]

I generally use a full twist around 8 feet. Somewhere, 
there is probably some sort of formula that is based 
on the wavelength at the highest frequency being used 
on that feedline. 
 
I am more concerned about flutter and accompanying 
fatigue of the conductors in high Oklahoma winds than 
I am about any radiation or pickup considerations. 
  
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* Oklahoma City, OK * 
* USAF, Ret (61-81) * 
* * * * * * * * * * * 
 
 
 
> Date: Sun, 20 Nov 2011 00:16:38 +0000
> From: ko6bb1 at gmail.com
> To: boatanchors at mailman.qth.net
> Subject: [Boatanchors] Slightly OT: What is the optimum "twist ratio" in window-line
> 
> I'm asking this here as I don't belong to any antenna lists right now.
> 
> If you were using 450 Ohm window-line to feed a dipole, and you wanted 
> to minimize stray radiation or extraneous pickup from the line, about 
> how many twists (say per 10 feet of line, or whatever) would you put in it?
> 
> Thank you.
> 
> -- 
> 73 de Phil, KO6BB
> http://ko6bb1.multiply.com/ (OTR Blog)
> http://www.qsl.net/ko6bb/ (Web Page)