Digital TV and Radio - The Changing Face of Radio and Television

Digital TV


A new format called ATSC digital TV is being implemented in North America and will replace the analog NTSC one in 2009. This will allow high-definition television (HDTV) to be implemented in terrestrial television broadcasting. This digital TV transition will enable households that do not currently have a satellite system to receive digital terrestrial TV will give you an improved picture quality.

Other new benefits of digital transmission is that more channels can be transmitted in the same bandwidth (portion of the radio frequency spectrum), which allows more broadcast channels using existing transmitters and antennas (although the changes will be necessary) and allow some of the bandwidth to be used for other services, if desired, such as voice and data or government uses.

For the average user, the image quality, whether the use of HDTV or not, will greatly improve.

In the UK, this transformation has been underway for some years with the result that many people have such a great variety of channels available through digital terrestrial television transmission as they would with a satellite system and the quality of both enhanced image.

For the consumer, should be understood that it is not necessary to buy a whole new TV to receive the new transmissions. A simple decoder (digital tuner) can be used, although more and more new TV will be able to pick up digital broadcasts without an additional box. These decoders retailed at very low prices for what is not a big investment, and the U.S. government is taking steps to help people with vouchers to ensure all improvements to this new service before the stop analog broadcasts. Additional equipment may only be a better antenna.

In the U.S. market most people already use satellite services and cable and most of them already receive digital signals, but up to 20% may be receiving analogue terrestrial services in these people a great improvement in services TV is on the horizon.

Digital Radio

In the U.S. digital radio has been met with satellite services in particular, although terrestrial broadcasters are interested in the introduction of services, if the high cost of reception equipment is reduced. Satellite services have been popular for people who travel because they can receive the same channels that are used to wherever they are, and there are fewer problems with censorship and advertising with satellite services, although the downside is that they subscribe.

In digital radio is the UK via terrestrial services (toll-free DAB radio, apart from the costs of equipment) and services are becoming very popular now that equipment costs have been reduced to less than $ 100 for most recipients. Many more channels and excellent quality means that it will become the radio as a medium of choice for most people very quickly. DAB (Digital Audio Broadcasting) is increasingly popular in homes and cars with a wide variety of channels and crystal clear transmissions.

Improvements in signal quality and the choice of the station and in television services are the main benefit for consumers. For service providers who ultimately will be many more services they can offer people more bandwidth radio itself, advertisers will have a better orientation in the same way that they can through the Internet, and spectrum radio that the government has more to either more channels or other uses.