[mythtv] HDTV Reception

[Doug Larrick]

Daniel Thor Kristjansson wrote:
> A yagi is the same thing except the rods are evenly spaced and each is
> as long as the other. This is a high gain, narrow band antenna. The more
> segments (rods) a yagi has the more directional and higher gain it is.
>
> Both types of antenna's usually have a reflector at the back, which is
> another rod at an irregular spacing to the others.

I use an antenna in the Yagi family, 25-30 miles from the transmitters
in Boston.  One of these:
http://www.antennasdirect.com/42xg___extreme_gain_42_element_y.htm

 From what I understand, the corner reflector flattens out the frequency
response somewhat over a normal Yagi.  On this particular antenna, the
stacked arrangement of the rods flattens the beam (reception area),
which is no great loss for terrestrial signals; this means it can use a
relatively few segments and still get good gain.

-Doug
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