On February 17, 2009, Americans will enter the age of digital television — ready or not.
On that date, all full-power broadcast television stations will begin broadcasting only in digital, improving sound and picture quality as well as allowing for stations to offer multiple programming choices, called multicasting.
The government-mandated change will free up needed frequencies for public safety and new wireless communication offerings.
What’s the difference between analog and digital?
Since television was invented, stations have broadcast analog signals, or continuously varying radio waves. The familiar “snow” or ghosting of images is one problem with this way of sending broadcast signals. Another issue is the limited bandwidth for an ever increasing number of television channels.
After the transition, broadcasts will be sent only via digital signals, which use a series of zeroes and ones to transmit data just as a computer does. The result is clearer, more reliable picture and sound as well as the opportunity for more programming options and interactive features.
Because of how a digital signal transmits information, it has more room for additional data. So now television stations that once broadcast on one channel, such as channel 3, can now broadcast on several segments of that channel, for example: 3-1, 3-2, 3-3, 3-4. Each channel could offer specialized programming for a particular audience.
HDTV is the highest level of digital television quality, but it is not the only one. SDTV, or standard definition television format, is the quality at which basic digital broadcasts will be provided. SDTV offers an enhancement over traditional analog broadcasts, but it is not as sharp as HDTV.
What do I need to do to be ready?
If you have an analog input television and currently receive your television service through cable or satellite, you will continue to receive your current stations without needing to purchase additional equipment. However, to receive the full, original quality digital signal, you may need to upgrade your set or get special equipment from your service provider. Simply check with your cable or satellite company for more details.
Note that if your service goes out due to weather or other circumstances, you will no longer be able to receive traditional television channels without a digital tuner or digital-to-analog converter box.
If you have an analog input television and receive your signal via an outside antenna or “rabbit ears,” then you will need to purchase a digital-to-analog converter box to be able to continue watch television. Your set will continue to work as before with gaming consoles, DVD players, VCRs and other similar systems.
The new converter boxes are expected to be available in early 2008 and run between $50 and $70. From January 1, 2008 through March 31, 2009, all U.S. households are eligible for a government coupon program to offset $40 of the cost for up to two boxes per household. A list of eligible boxes is available from the National Telecommunications and Information Administration, which manages the program.
Aside from buying a converter box or signing up for a cable or satellite service, you could also choose to buy a new digital-input ready television. After May 2007, all new televisions must be ready for receiving digital signals or be clearly marked that additional equipment will be needed.
These next generation television sets are the best way to experience all that digital television has to offer.
By: Digital Landing
Posts Tagged ‘Digital Signals’
Why your TV Will Die on February 17, 2009 (and What you Should Do About It!)
December 24th, 2009It’s coming!
It’s coming on February 17, 2009! It’s about to cut off the signal to your TV, and most likely you’re not prepared for it!
It’s almost as big a shift in home entertainment as happened sixty years ago when television replaced radio in America’s living rooms!
It’s DTV! Digital Television is going to change the way you watch television, and how you interact with your TV set. You’re finally going to get movie theater quality picture and sound at home!
• Digital TV is also going to reach into your pocketbook! All U. S. broadcast stations will stop sending analog TV signals, the kind your regular TV reads, on February 17, 2009. Without a new converter box, your TV will not work!
• Many stations are broadcasting a digital DTV signal right now along side their analog signal, but after 2009 they’ll only transmit in DTV.
• This digital signal can only be properly viewed on a new Plasma, DLP or LCD TV. If you don’t own one, you’ll need a converter box to watch digital signals “dumbed down” to show on your analog TV. In addition to the new Big Screen TV, you’ll also need a Dolby Surround Sound amplifier and speakers to get the DTV Dolby sound.
• All new TVs sold must have a digital tuner built-in as of March 1, 2007. Your old analog TV will need a set top converter box to receive television broadcasts after February 2009.
• Your cable provider may be able to send you digital cable or digital satellite signals right now, but that doesn’t mean that you can see High Definition programs on your television. If you have an old style picture tube television, a converter in your cable box can take the digital signal and “dumb it down” to analog so that you can see it. You’re still not seeing the super sharp DTV picture, or hearing the crystal clear digital sound.
• Digital Pictures will be free from the flicker, ghosts and snow seen on analog transmissions. More than twice as sharp as Standard TV, DTV signals allow crystal clear images with higher resolution and picture quality than is possible with old style TV.
• DTV will provide programming in wide screen “movie format”. The digital picture is so sharp you’ll be able to read the small text from your computer hooked up to the TV screen.
• DTV allows multicasting: broadcasters can provide a super sharp High Definition (HDTV) program or several Standard Definition programs at the same time. Sending several program streams on one channel is called “multicasting”. The number of programs a station can send on one digital channel depends on the sharpness (resolution) of each program. DTV can provide interactive video and data services that are not possible with the old analog technology.
• DTV features Dolby Surround Sound to give you that full movie theater sound in your home instead of the old, tinny TV sound you grew up with. With a Surround Sound tuner and speakers installed, you’ll get roaring, sparkling sound assaulting your family from all directions: front, sides and rear!
• If you don’t have cable or satellite TV, you’ll need a Plasma or LCD TV with a DTV tuner, or a digital-to-analog converter box to see digital signals on your analog TV. Converter boxes will be available in retail stores during the transition.
• The National Telecommunications and Information Administration of the U. S. Department of Commerce will issue two $40. 00 coupons per household that can be applied toward the purchase of digital-to-analog converter boxes. Coupons will be issued starting January 1, 2008.
• An Integrated DTV set is a digital TV with a built-in digital decoder or DTV receiver. If you have an Integrated DTV and live in an area with a DTV broadcast station, you won’t need anything else. You may need an antenna (an outdoor antenna is best) to receive over-the-air DTV broadcast programming. Integrated TVs can receive and display current analog signals.
Television is about to leap out of the Stone Age into the future! Make sure you’re ready for it!
It’s as easy as 123!
How to Get Satellite and Digital TV
December 23rd, 2009A final and non-extendable deadling has been set by the FCC for broadcasters to change their signals to digital format from the analog system of the past. From February 17 2009, broadcast networks will no longer be airing analogue TV signals.
Satellite TV and digital cable TV subscribers will not be affected by the policy as they already receive digital broadcasts from their respective providers. Those who are currently receiving broadcast signals with the help of an off-air antenna or analog cable provider will definitely be affected by the transition.
In order to receive digital channels, a non-subscriber of Satellite TV and digital cable TV broadcasts may do any of the following:
* Replace an analog TV with one that has a digital tuner or one that can receive digital signals. There’s no need to rush out and buy an expensive HDTV in panic just yet. You current TV may have come equipped with a digital tuner.
* Obtain digital channels from a Satellite TV provider or from a digital cable provider. Satellite TV subscribers already own receivers which does the job of converting digital signals into a format that is recognized by the analog TV set.
* Install a digital converter box. One may still use an analog TV set by purchasing a digital converter box. The digital converter set-top box will process the digital signal it receives and convert it into analog format for a non-digital TV.
A digital converter may cost anywhere from $50 to $100. To lessen the costs of switching, the U. S. government has offered coupons for rebates of $40 to those who buy digital converters.
Interested TV owners may now buy their digital converters at their favorite electronic outlets.
The change from analog to digital TV will be beneficial to both government and private sectors. The conversion to digital transmission will free up frequencies in the broadcast environment for more crucial uses.
End users will, on the other hand, enjoy the renowned digital audio and picture quality. Some viewers may immediately assume that all channels will be transmitted in the much coveted High Definition format.
It will all depend on the TV set that receives the signal and the provider that delivers the signal. Digital TV may be in Standard Definition or in High Definition.
Regardless of the kind of definition one may eventually receive, what is certain is that digital TV will produce superior picture and audio quality that no analog broadcast can provide.
