CHALLENGES FACING NIGERIA TELEVISION IN SWITCHING TO DIGITAL BROADCASTING
Need help with a related project topic or New topic? Send Us Your Topic
DOWNLOAD THE COMPLETE PROJECT MATERIAL
CHALLENGES FACING NIGERIA TELEVISION IN SWITCHING TO DIGITAL BROADCASTING
Chapter one
INTRODUCTION
1.1 Background of the Study.
Until recently, all broadcasting medium operated on an analogue system. Analogue television uses full waves to convey images and sounds. The biggest disadvantage is that location plays an important role in blocking and distorting visuals and audio on television in rural communities.
Digital televisions are becoming more prevalent, with many cable providers urging their customers to upgrade to digital television in order to take advantage of new services.
Digital television information, like compact discs, is split down into binary pieces. Digital TV transmissions are resistant to distance and interference, and they are relatively free of visual snow and interruption.
Kombol (2008, p.67) describes digital communication as “an advanced form of information transfer in which messages are converted into a series of 1s and 0s (binary digits) and sent over a channel to the receiver.” Television transmission has steadily improved over time. It switched from monochrome (black and white) to colour transmission.
Television is a technology that sends and receives images and sounds via electronic signals delivered through cables and optical fibres or electromagnetic radiation.
These signals are often broadcast from a central source, a television station, to reception devices such as home televisions or relay stations used by cable television service providers. Microsoft Encarta, 2009.
Digital television is a new technology that transmits and receives broadcast television signals. Using an additional 6 Megahertz (MHz) of broadcast spectrum temporarily granted by Congress and the FCC for no less than 9 years, broadcasters will be able to develop a diverse range of new digital television programming and services while continuing to transmit traditional analogue television programming on their existing spectrum allotments, as required by the Telecommunications Act of 1996 (Telecommunications Act of 1996).
A digital standard is superior than analogue because it is more accurate, versatile, efficient, and interoperable with other electronic media. Digital transmissions also have the advantage of producing no noise or “ghosting,” making them more resistant to signal interference.
Within the signal’s range, this produces a flawless signal. Digital Television (DTV) is a cutting-edge broadcasting technology that has revolutionised your television viewing experience.
DTV has allowed broadcasters to provide television with higher image and sound quality. It also provides many programming options, known as multicasting and interactive features. (Asemah 2009, p. 23).
Digital television employs technology that records, transmits, and decodes signals in digital format—that is, as a series of ones and zeros. This method produces far better image and sound quality than analogue systems. It also allows for the embedding of additional characteristics in signals, such as program and customer information, as well as interactivity.
Early digital equipment consisted of digital television receivers that transformed analogue signals into digital code. The analogue signal was sampled, saved as a digital code, then processed and recovered. ATSC digital tuners, which decode completely digital signals, are now standard on modern televisions.
Daramola (2003), p. 45. Nearby moving vehicles, such as cars, trucks, trains, and aeroplanes, might interfere with digital television reception. In certain cases, shadows or reflections from these vehicles might cause digital images to temporarily break up or even disappear entirely.
If this happens, consider adjusting or reorienting your antenna to find the best position for reliable reception. If you’re using an indoor antenna, upgrading to an outdoor antenna system that includes a directional antenna or rotor may increase reception.
In severe instances, it may be impossible to totally eliminate the impact of surrounding traffic. If the reception remains inadequate,
The move to digital television is a technological advancement over analogue terrestrial television, which broadcasts land-based (terrestrial) transmissions.
The purpose of digital terrestrial television, as with digital versus analogue in other platforms such as cable, satellite, and telecoms, is to use less spectrum and have more capacity than analogue, to have a higher-quality picture, and to have lower operating costs for broadcast and transmission after the initial upgrade costs.
A terrestrial version of digital television technology sends transmissions to a traditional antenna (or aerial) rather than a satellite dish or cable connection (Liwhu, 2008).
Various versions of digital terrestrial television technology are utilised all over the world. North America and South Korea employ the Advanced Television Standards Committee (ATSC), which evolved from the analogue National Television Standards Committee (NTSC) standard.
ISDB-T is used in Japan, with variations in Brazil, Peru, Argentina, Chile, Venezuela, Ecuador, and, most recently, Costa Rica and Paraguay, whereas DVB-T is the most common, spanning Europe, Australia, New Zealand, Colombia, Uruguay, and a few African countries.
DMB-T/H is China’s standard (including Hong Kong, however Hong Kong cable operators use DVB); the rest of the world is largely unclear, with several studying multiple standards. ISDB-T and DVB-T are highly similar, with front-end receiver and demodulator components that can be shared.
Need help with a related project topic or New topic? Send Us Your Topic