For a long time, terrestrial hertzian waves were the only means of broadcasting radio and television.
Subsequently, technological advances brought with them other modes of broadcasting, such as cable, which allowed the distribution of various services, and satellite, which allowed direct broadcasting to private recipients. Each of these modes of transmission is marked by specific legal characteristics that arise from its very nature.
The most recent technical change or advancement is digital broadcasting, which complements the older methods of television and radio broadcasting, but at the same time replaces the standard of analog broadcasting.
This fact represents a true revolution in the way we consume audiovisual media.
Since the Hertzian space is a scarce resource, whose possibility of exploitation is increasingly exhausted, the main objective of Digital Terrestrial Television (DTT) is the release of space in the radio frequency spectrum and the consequent multiplication of broadcasting channels, overcoming the limitations posed by the analogue broadcasting mode and thus generating a surplus of spectrum known as sub-
frequency bands or “digital dividend”.
There are different systems or platforms used for the implementation of Digital Terrestrial Television (DTT), namely: ATSC (Advanced Television System Committee) used by the United States of America, Canada, Mexico, Honduras, El Salvador and soon by the Dominican Republic; ISDBT (Integrated Services Digital Broadcasting) used in Japan; ISDBT-tb, a variant of the Japanese system used in Brazil, and many Latin American countries such as Peru, Argentina, Uruguay, Chile, Venezuela, Ecuador, Costa Rica, Paraguay, Bolivia, Nicaragua, Guatemala. Likewise, we can highlight DTMB (Digital Terrestrial Multimedia Broadcast) used in the People's Republic of China; DVB-T (Digital Video Broadcasting – Terrestrial / Digital Video Broadcasting) used throughout Europe, in Australia, in some African countries such as South Africa, Namibia, and in Latin America only in Colombia and Panama.
Thanks to the multiplexing mechanism of Digital Terrestrial Television (DTT), six television channels or programs can be broadcast simultaneously on the frequency previously used by a single television channel; this is known as a "digital multiplex" or "multiplex."
Furthermore, Digital Terrestrial Television (DTT) provides higher-quality image and sound reception, as well as a broader range of services for all users within its coverage area.
The implementation of Digital Terrestrial Television (DTT) represents a technical evolution in television broadcasting in our country. It seeks to promote greater market participation by public telecommunications service providers, which could translate into improved offerings for users in terms of technology, quality, cost, and variety.
Digital Terrestrial Television (DTT) allows reducing spectrum occupation
radioelectric thanks to the use of more efficient modulations, obtaining better image and sound quality, providing interactivity to audiovisual communication between user and service operator ("Video On Demand", "pay per view", among other transactions).
Likewise, Digital Terrestrial Television (DTT) would reduce broadcasters' energy consumption, since the transmitters used for DTT require less power to transmit signals. It would also reduce operating costs for broadcasting and transmission, once the adaptation costs have been amortized.
The goal is therefore to maximize the use of the radio spectrum, creating opportunities for broader competition not only for audiovisual communication service operators, but also for telephone and internet service providers.
This mission, to launch the establishment of Digital Terrestrial Television (DTT), is reserved to the Dominican Institute of Telecommunications (INDOTEL), the body empowered to manage the radio spectrum, as well as to plan the Hertzian spectrum bands for radio stations and the allocation of broadcast channels to Digital Terrestrial Television (DTT) operators.
It is in this sense that the telecommunications regulatory body in our country, the Dominican Telecommunications Institute (INDOTEL), decided to consider the need to evolve towards the digital terrestrial broadcasting model on January 12, 2006, approving Resolution No. 003-06, by which the Interinstitutional Committee for the Transition from Analog to Digital Radio and Television in the Dominican Republic was created.
Later, on August 2, 2010, the Board of Directors of the Dominican Telecommunications Institute (INDOTEL), pursuant to Resolution No. 102-10, approved the conclusions contained in the technical report prepared in order to recommend the adoption of the digital television standard in our country, as part of the transition process from analog television broadcasting to digital broadcasting.
Thus, on August 9, 2010, through Decree No. 407-10, the establishment of the North American ATSC (Advanced Television System Committee) model was ordered as the Digital Terrestrial Television (DTT) standard to be implemented in the Dominican Republic, establishing the date for the "analog switch-off" to occur on September 1, 2015, that is, within 2 years and 9 months.
telecommunications services in general, even giving way to the participation of new public and private actors.
Similarly, it is worth noting that the implementation of Digital Terrestrial Television (DTT) in our country will result in a change in the economic model of audiovisual media production, which will require financial support from advertisers to ensure its sustainability over time.
The above presents a challenge for program producers and editors.
audiovisual media to the extent that the multiplication of dissemination channels will not necessarily entail the multiplication of private and public investment.
Furthermore, we must consider the need to establish a Higher Audiovisual Council, which would be responsible for granting authorizations for the use of the radio spectrum to audiovisual communication service operators, taking into account not only technical and economic criteria, but also criteria associated with the quality of the content broadcast.
Finally, the deployment of Digital Terrestrial Television (DTT) must create the conditions for the establishment of a technologically effective system that reaches all
Dominican households, which increases the chances of free competition in the
market, which guarantees higher quality of the content disseminated, as well as, greater
diversity and information pluralism.
Recommendations:
Without this list being exhaustive, it is recommended:
a. Provide uniqueness to the language used to identify Digital Television
Terrestrial (DTT).
b. Create the Technical Plan for the establishment of Digital Terrestrial Television
(TDT) in the Dominican Republic, determining, among other things, the coverage
gradual thereof.
c. Design the National Plan for the Transition to Digital Terrestrial Television (DTT).
d. Design the technical and application regulations for Digital Terrestrial Television
(TDT) to provide, among other things, the following:
- Specify the conditions for authorization to use the Hertzian spectrum
necessary for the broadcast of any digital terrestrial television service.
- Authorize audiovisual communication service operators the right to
use of a second frequency in digital mode under the established conditions
by the Dominican Institute of Telecommunications (INDOTEL).
- Create a sort of anti-concentration device aimed at regulating the issue of
limit on authorizations per specific geographical area, in order to avoid abuse