[TowerTalk] K9AY loops-- phased

[Joe Szeliga]

Dear Gents, before i prepare detailed answer
my propose is to visit page with 160/80 mtr version
http://www.sp3key.com/klub/k9ay_160_en/index.html
Link in my previous post was adequate to 80/40 mtr version

The new 160 mtr version  with antenna spacing 20 mtr (1/8 W.L.)
and phase shift 135 degrees is under development/ final testing.

Joe, SP9P

> 
> Joe, SP9P's report on the sp3key quad-phased K9AY loops is
> interesting, and prompts questions.
> 
> 1)  Has anyone modelled this?  What is the resulting 
> pattern, in any one direction?
> 
> 2)  I would assume that the pattern is tightened, and f/b
> improved.  Does this result in front-side coverage holes?
> 
> 3)  My crossed AY loops worked ok...and had deep nulls, but
> only very seldom did an offending station land in one.  As
> a result, I concluded that ONE AY loop, rotatable, was better.
>     Is that same effect noticed at sp3key club?
> 
> 4)  The discussion doesn't talk about frequency.  Yet the loop
> terminations need to vary, to optimize performance at 3.5 or 1.8.
> What provision is made for 'tuning' the loop termination?  
> 
> N2EA
> 
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