[mythtv-users] HDTV antenna quandry

Brad Templeton brad+myth at templetons.com
Thu Apr 26 01:14:35 UTC 2007


On Wed, Apr 25, 2007 at 08:10:50PM -0400, Mark wrote:
> Daniel Kristjansson wrote:
> 
> >The cost of making channel specific antennas is not great.
> >But because they are marketed mostly to money-is-no-object
> >consumers (local cable monopolies), they are not cheap. A
> >channel specific Yagi is one of the simplest antennas you
> >can make, just google for the formula if you are interested
> >in making one. I've made these myself for 2.4 Ghz signals
> >UHF and VHF signals, and the weaker the tolerances for UHF/VHF
> >are easy enough that you will succeed on the first try if you
> >make one yourself. Studying up on making an antenna will also
> >help you understand how the antenna system will actually work,
> >all those antennas become one antenna when you combine them.
> >Also, if you make the antennas and one of your antennas has a
> >side-lobe where another antenna is pointing, you change that
> >antenna to move the side-lobe (but with channel specific yagis,
> >you probably don't need to do this unless the channels are
> >very close in frequency.)
> >
> >-- Daniel
> >
> >  
> >
> Where does one learn to build one?  Have any links or "googlese" I can 
> search on?

There is a product that's cheap, the channel master jointenna.  I posted a
url for one vendor I found on the net:

    http://www.warrenelectronics.com/antennas/Jointennas.htm


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