[TowerTalk] Variable phasing was: Re: [CQ-Contest] Stacking on separate towers, take off angles?

[Jim Lux]

On 3/18/13 6:32 AM, Roger D Johnson wrote:
> Here's the patent:
>
> http://www.google.com/patents?id=_WU6AAAAEBAJ&printsec=abstract&zoom=4&client=internal-uds#v=onepage&q&f=false
>
>


Interesting..

The antenna compendium article had a continously variable shifter 
(actually, a regular old T or Pi tuner, as I recall)

There's countless ways to skin this particular cat.