DTV Transition | Digital TV Transition
In the United States all full power television broadcasters will be required to cut off their analog tv broadcast signals on February 17, 2009. From that date on, broadcast television from full power broadcasters will be in digital only. The law has been updated though and the digital television conversion will not complete until June 12th of 2009. The new digital broadcasting offers some improvements over Analog. First, it's possible to transmit several different video streams within the bandwidth that a single old analog tv stream occupied. This gives broadcasters the opportunity to subdivide their channel up into subchannels. I've seen as many as 5 sub channels from a single broadcaster. Additionally, broadcasters can transmit programming information for program guides, much the way digital cable or satellite users have onscreen guides to display what channel they are watching and what is currently showing. Another potential benefit is multiple audio streams so that programming can be broadcast in English as well as spanish for instance. To a certain extent some of this feature is already available in analog broadcasting with SAP (Secondary Audio Program). Of course for many the biggest improvement of Digital TV or DTV is the improved picture quality. Areas that saw snow or poor signal will be able to get a crystal clear picture. Our area used to see all sorts of ghosting and snow on even the closest channels with a good antenna. We are in the mountains. With digital we will for the first time be able to get a clear picture from our local broadcaster. Unfortunately our area requires a bit better antenna than most due to the mountainous terrain. For most people in urban and suburban areas with good "line of sight" to the broadcast towers you will see a great improvement from the switch to digital television. It's worth noting that HDTV (High Definition Television) is NOT the same as Digital Television. Digital Television is just a means of getting the picture to the viewers, High Definition Television refers to the quality of the picture. Many Digital Broadcasters are moving to what is called Standard Definition and offering a simultaneous High Definition feed. Digital broadcasting is required to have High Definition. The Federal Government in the United States has setup a page with information about the DTV Transition | Digital TV Transition. See below for the latest news on the DTV Transition.
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