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TV Converter Boxes - DTV vs. Analog
By Tony Lee
February 17, 2009, is the date set for all full-power television broadcast stations to begin broadcasting in digital format. Congress has ordered the changeover so that the frequencies now used by television stations, can be freed up and made available to public service bands, such as Police, Fire and other agencies. When this announcement first came out, the first thing I thought was: "Time for upgrades" and "how much will it cost me"? As it turns out, it's not as bad as I would have thought. Those of you who receive TV broadcast channels via an outside roof mounted antenna or an inside rabbit ear configuration, need to check your TV for compatibility. Generally speaking, if you have purchased a new Television after May, 2007, chances are it comes with a digital tuner built in. In this case, nothing is required to receive digital signals from a TV broadcast station. However, TVs purchased before that date may require a digital converter box to translate the the Digital signal to analog. Using this converter box will allow you to continue using your old television. If you are a cable or Satellite signal subscriber, contact your provider to see if any additional equipment is required. Keep in mind that you will not reap the benefits of the new digital technology, as the signal will most likely continue to be analog. Although this switch over might require some ad-ons and modifications, there are some positive points to this transition. First, DTV signals run circles around the now standard analog signals in both sound and picture quality. In the analog concept, the video signal of television is transmitted in AM, and the audio signal is transmitted in FM. So basically the picture and sound you experience is sent via two different frequencies and bands. This is why you may sometimes see "ghosts" or signals that fade in and out. In the DTV, or digital TV concept, it works and handles the signal they same way your computer does, through "data bits". With this technology, there is no fading or ghosting as the signal is either on or off. This signal can produce much higher quality voice and picture. One other advantage of DTV over analog is that the signal can be reproduced in wide format, such as new TVs are being manufactured. This offers the viewer to capture more of the scene. For more information on purchasing Converter boxes and the changeover, visit www.DTV2009.gov. If your in need of a box you can request a discount coupon. Remember that these coupons expire 90 days after mailing. |
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This intel was contributed by Tony Lee
Tony Lee
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