[TowerTalk] HI-Z antennas

Rick Karlquist richard at karlquist.com
Tue Feb 7 11:13:54 PST 2012

Jorge Diez - CX6VM wrote:
> Hello,
> Do you know about HI-Z antennas? They told me they are not selling this
> antennas anymore. I was looking for the 4 element array
> http://www.hizantennas.com/controller_4_elements.htm
> I found something, but I don´t know it it´s the same or as good as HI-Z
> antenna http://www.dxengineering.com/Sections.asp?DeptID=12
> <http://www.dxengineering.com/Sections.asp?DeptID=12&ID=117> &ID=117
> Anyone use this DXE RX system?  It´s easy to install?

You'll probably get mixed reviews on this product.  I evaluated
one a long time ago when it was first introduced.  It has
insufficient feedline isolation IMHO, the noise figure is not
great, it is susceptible to AM broadcast overload (YMMV here!),
and the repeatability of phase is questionable in light of the
non-precision front end filtering.  The combiner reportedly has
some issues; I only tested the antenna itself.

I made my own homebrew solution that worked better for me.  See:


I am not selling anything.  This design isn't patented, feel free
to copy it if you like.  Unfortunately, I don't have time to write
a construction article, however there is enough information on
the diagram for the experienced builder to duplicate the design.

Rick N6RK

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