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On September 8th 2008 Wilmington North Carolina will be the very first city in the United States to switch to 100% ATSC digital. At noon on September 8th 2008 all full power commercial TV stations in Wilmington North Carolina will turn off the NTSC analog TV transmissions. Wilmington North Carolina is the test city. Then on Feb 17th 2009 all NTSC full power stations everywhere in the United States is scheduled to be turned off and only broadcast in ATSC digital.
http://www.dtv.gov/wilmington/index.html The Federal Communication Commission was wise to have a test city to see what will really happen under real world conditions. All consumer electronics manufactories should watch what happens on September 8th and during the several weeks after September 8th. There is a possibility that in the city of Wilmington NC that there may be a shortage of ATSC digital converter boxes and new TV sets as consumers that watch only over the air broadcast channels rush to the stores to buy new equipment. If several stores run out of digital ATSC converter boxes some consumers will choose to purchase low cost TV’s between $80-$300 which have ATSC tuners already built in. Others may spend $1,000 or more on a 1080P model. Some consumers that do not subscribe to DVR services will be purchasing low cost $200-$300 DVD recorders with built in ATSC tuners so they can continue to record in 480I quality from the local channels. If there ends up being a shortage of ATSC digital converter boxes, DVD recorders, and new TV sets with the built in ATSC tuners on store shelves in Wilmington North Carolina then the same thing may occur nationwide after February 17th 2009. Perhaps the digital switch could help jump start the economy as consumers will be required to purchase new equipment if they want to continue to watch their local free broadcast channels. No one knows for sure but several millions of new ATSC digital converter boxes and new TV’s could be sold nationwide in 2009 with shortages possibly lasting several months. Over the years the bandwidth for over the air free TV channels keeps shrinking in the United States. There was a time when older TV’s and VCR’s went between channels 2-83. Then the FCC shrank the TV bandwidth to channels 2-69. Now when the nation converts to 100% digital ATSC the actual real bandwidth will be reduced again to channels 2-51. Virtual bandwidth with ATSC digital uses MPEG-2 compression with AC-3 with a 8VSB modulation that allows several video and audio channels to be placed in the same space as one NTSC channel use to be located. So with the switch to 100% ATSC we are losing physical bandwidth but gaining virtual bandwidth. The reason for the switch to the better quality digital ATSC format and the reduction of the physical over the air broadcast TV bandwidth is so the FCC can re-assign the discontinued TV bandwidth for other important things like emergency service communications, etc. If the FCC keeps shrinking the physical TV bandwidth possible in several decades from now there might not be free over the air TV anymore. Many consumers subscribe to cable TV and satellite services because they offer a wider selection of channels compared to over the air free broadcast TV. Of course almost nothing is for free, the advertisers and are tax dollars pays for over the air broadcasts. |
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