[Lowfer] Jay's K9AY ANT

[Warren Ziegler]

Alan,

   Dallas Lankford has a good analysis (including NEC models) of
phased verticals vs phasing a loop and a vertical:
http://www.kongsfjord.no/dl/Antennas/Phased%20MW%20Receiving%20Verticals.pdf

   Lots of good info on noise reducing antennas, phasing receive
antennas, radio modification for LF/MF etc at the Dallas Files:
http://www.kongsfjord.no/dl/dl.htm

-- 
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1




On Mon, Feb 9, 2009 at 2:26 PM, Alan Melia <alan.melia at btinternet.com> wrote:
> Hi K9AYers .....Good try Bill, but I am afraid that won't quite convince me.
> There are probably any number of ways of getting a K9AY pattern, but that
> does not prove that it works that way (eg two phased verticals....which I
> believe has been suggested) I have no axe to grind I am just interested in
> the right answer, rather than some "hand waving" extrapolations. (I'm quite
> good at those myself) I am also worried that by the time one get up to HF
> the size of the loop is much closer to the wavelength so extrapolations from
> HF to LF may not be valid.
>
> A loop with a sense gives a cardioid shape I have a feeling that the null on
> a K9AY is sharper and the side response less. I wonder if anyone has tried a
> simulation (EZNEC?) to save Bill getting frostbite  :-))
>
> Isn't LF and MF Lots Fun !!
>
> Alan G3NYK
>
>
>
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