If you're excited about the transition from
analog to digital TV broadcasting, you're like millions of others
who love HDTV. It's the only way to get the ultimate in
crystal-clear picture and sound. But did you know that you can
actually use an off-air HDTV antenna to receive local signals, in
Hi-Def? With the coming of the digital revolution, antennas aren't
going the way of the dinosaur - more TV lovers are using them to
receive HDTV without having to pay monthly subscription fees to a
cable or satellite company.
But using an antenna to receive digital signals
is more than just cost-effective. Not everyone realizes that HDTV
signals sent over the air are the best you can get. The recent
crossover from analog to digital signals has made snow and
ghosting, the worst culprits of picture distortion, remnants of the
past. In the digital world, for both standard and high definition,
it's cut and dry: you either get a crisp picture or nothing at all.
Although most local programming is not high-definition, at night
when stations switch over to primetime shows the signal comes in as
full widescreen HDTV.
There are many more reasons why using an HDTV
antenna to receive HDTV signals is a good idea. The first good
reason is that local digital TV broadcasts are ubiquitous. It's
true that you can find the best selection of channels in big cities
and urban centers, but over 99% of American TV households can gain
access to at least 1 digital station, and 89% have the capability
to get 5 or more. And it's very easy to find out what's
broadcasting in your area - just check out the web for a list of
available channels.
Secondly, over-the-air digital reception offers
the highest quality pictures. Why is this the case? Because cable
and satellite providers let you choose from a large number of
channels, they are forced to compress the data, which compromises
picture quality. Lower picture quality may include a "soft" image,
and video distortions that can be quite distracting. Using an
antenna means you can watch HDTV in full resolution.
And an off-air antenna gives you access to every
local channel. Sometimes with cable and satellite companies, you
may receive a wide selection of channels, but due to bandwidth
restrictions, every local channel may not necessarily be included
in the package. If they do offer these channels, it's most likely
not available in high-definition, which is disappointing once you
get used to HDTV. Even worse, sometimes contract disagreements
between local cable companies and broadcasters make it so that
certain major networks may not be accessible via digital cable
TV.
Another bonus: off-air HDTV antennas may even let
some people access non-local channels. If you set up the proper
equipment and take advantage of the right reception conditions, you
can pick up out-of-town channels, some even carrying sports
programs that are normally blocked out locally.
Probably the most important benefit of using an
antenna is that you can get HDTV for free! Over-the-air signals are
free once you purchase and set up an antenna, so there's really no
reason not to try it out for yourself.
Don't forget the tuner...
If you don't already have a tuner integrated into
your HDTV, you'll need to purchase a HDTV tuner in addition to the
HDTV antenna so you can receive digital signals on your HDTV-ready
TV. For people currently subscribed to a HDTV package from DIRECTV®
or DISH®, you're in luck because the HD satellite receiver you
already own might also have over-the-air HD tuner
capabilities.
When first attempting to pick up signals with an
antenna, you're going to have to do some work. Because TV signal
transmission is "line of sight" it can be difficult to get decent
DTV reception over 70 miles away (beyond the curvature of the
earth). It can also be a challenge to receive signals if mountains
or tall buildings are located between the transmission tower and
your home. The first thing you have to do is find your local
stations' transmitters.
The Consumer Electronics Association has a great
website, called Antennaweb, which is helpful in finding the
information you need. Here you'll find a list of analog and digital
TV stations. They even provide recommended antennas for each
station to plan for ideal reception.
What's Next
To locate TV stations near your home (or for
those in rural areas, TV stations in nearby cities), it's easier
than you'd think. But remember: if you really want to make the most
of your HDTV experience, it's important to properly install a
high-quality antenna, as this means you might be able to pick up
signals from stations over 50 miles away.
Using the online tools available on Antennaweb,
all you have to do is enter your address and it automatically
calculates your exact latitude and longitude. Write this
information down along with the direction noted on the screen. Then
visit the National Geophysical Data Center at http://www.ngdc.noaa.gov/seg/geomag/jsp/struts/calcDeclinationhttp://www.ngdc.noaa.gov/seg/geomag/jsp/struts/calcDeclination
and enter in your information to discover your
magnetic declination. Next, point your browser to the Broadcast
Television Station Search at http://www.2150.com/broadcast/default.asphttp://www.2150.com/broadcast/default.asp. Enter in all the information you've accumulated thus far in
addition to a distance range and you'll get the appropriate
results.
At this point, once you've purchased and
installed an antenna, it should be smooth sailing. All you have to
do is sit back, relax, and take in some HDTV.
About the Author
By Katerina Mitrou sponsored by http://antennasdirect.com/ who
manufactures and sells HDTV
antennas: http://antennasdirect.com/ tuned for
digital and high definition television reception.