Digital Multimedia Broadcasting
Digital Multimedia Broadcasting (DMB) is a kind of radio technology being developed in South Korea. This technology is a national IT project that serves to deliver multimedia content such as TV, radio and datacasting to mobile devices such as mobile phones. This technology is often referred to as mobile tv because this technology supports tv broadcast service on mobile phones. DMB was developed in South Korea as a digital technology to replace FM radio. DMB can use satellite (SDMB) and via terrestrial transmitter (TDMB).
This digital technology is capable of providing image quality that is equivalent to a digital television broadcast system and sound. This technology is increasing.
Digital broadcast system, thanks. This broadcast is acceptable on W-CDMA or CDMA 2000 based phones. This DMB service is accessible to customers who are within 150 km / h, compared to other services, such as wireless LAN and video on demand (VoD) over 3G networks. S-DMB services have high competitiveness, especially in terms of mobility and price. In fact, from the operator side, video service through S-DMB will be more efficient than VoD service through 3G network.
- S-DMB (DMB Satellite)
S-DMB Is a satellite-based network where mobile phones directly receive broadcast via satellite cable. S – DMBGS at SBand frequency (2,630 ~ 2,655 GHz) with 25 MHz band. In that case, the satellite acts as a repeater from a broadcast station in the earth station, which broadcasts broadcast programs to be transmitted directly via satellite to subscriber phones.
- S-DMB terminal
There are various types of S-DMB terminals available in Korea and Japan market. For this type of mobile phone, Samsung Electronics has launched DMB mobile phone which is followed by Pantech & Curitel, SK Teletec, Innoace Co. and Axess Telecom Inc., as part of the cooperation pattern with SK Telecom. The mobile phone manufacturer committed to launch the S-DMB type phone by the end of April 2005. The SDMB-enabled mobile phone, currently, is offered at a price range of $ 700- $ 900. As for the type of terminal placed on automotive vehicles, SK Telecom has determining five local manufacturers namely Innoace Co., Kiryung Electronics, Hyundai Digital Technology, Hyundai Autonet, and JAS Teletech. Medium, Cyberbank Co. is a manufacturer of PDA suppliers (Personal Digital Assistant) S-DMB. S-DMB has only one satellite for the broadcasting area, allowing for a nationwide broadcast
- T-DMB (Terrestrial DMB)
T-DMB Is a terrestrial-based network where mobile phones receive broadcasts through terrestrial systems emitted through transmitter antennas with towers high enough. This service uses the frequency of VHF (Very High Frequency), this technology does have the same frequency band received by the television at home, so T-DMB requires many transmission stations in each city for broadcast broadcast coverage, nationwide.
- History of Use
DMB in the first mobile phone is implemented in South Korea. This effort has been pioneered since September 2001 by SK Telecom, one of the number one cellular companies in Korea. Previously, DMB service has appeared in Japan since October 2004 DMB service operated by Japan Mobile Broadcasting Corporation (MBCo), a Japanese broadcasting company. But, it is used as a customer terminal monitors in motor vehicles, buses and trains, and has not yet made use of mobile phones. The Japanese operator, which then cooperated with SK Telecom to cooperate in the procurement of DMB satellite in December 2003. Included in the consortium are SK Telecom, Toshiba, Seoul Broadcasting Service (SBS), Samsung Electronics, CJ Media, KTF, MBCo and Renault- Samsung Motor On January 10, 2004 was the first day of trial broadcast, up to now there are 39 total service channels that can be enjoyed by anyone with a mobile phone that supports DMB applications. The existing service consists of 11 video channels (news channels, movies, sports), 25 channels of audio services (news channels, music and education), and 3 channels for data services (information services). All of these services can be enjoyed free of charge until the end of April, where the commercial launch will not begin until early May 2005.
For commercial broadcasting, the number of existing channels will be 14 video services and 24 audio services (digital radio broadcast). This service is quite competitive compared to the same service through EV-DO, which is also available. To enjoy the service, the customer is charged an activation fee of about $ 19 (approximately Rp.180.000) and about $ 12 (approximately Rp.110.000) for a flat monthly flat fee.
- DMB in Indonesia
DMB service is applied in indonesia precisely in jakarta. Indonesia has satellites that also serve as satellite TVs, such as Telkom-1 and Cakrawarta (Indostar-1), as well as terrestrial television broadcasting systems. The availability of DMB-enabled phones is a trigger for the implementation of this service. In addition, government regulations also affect the DMB implementation pattern in Indonesia. For example, is it possible to relay terrestrial television broadcasts into the S-DMB service or the S-DMB service will be applied by relaying through 3G operators (either EV-DV or W-CDMA). The streaming video service via EV-DO is now available in Indonesia, DMB service can be a competitor of video streaming services via mobile phones. With the possibility of TV broadcasts caught on the phone, it will be available a variety of TV shows are increasingly easy to enjoy anytime and anywhere, which of course is not limited to just watching videos or movies. This is expected to be more attractive to TV viewers and mobile users alike.
The presence of commercial TV on mobile screens with DMB technology will have a positive impact. In addition to increasingly enriched mobile network-based services from existing ones, it will also impact the development of various content, such as TV shows, quizzes, music, and so on. All of these things will certainly give a domino effect, for example on attracting and opening new jobs and professions. For example, the DMB operator in South Korea with the new service will be able to reach up to 5 million subscribers within 5 years. If it does, it will affect the needs of 184,000 workers spread across various sectors and professions, including added services. Therefore, if the operators and TV broadcasting stations are already doing the regulation from the government to provide TV service on the DMB-based mobile phone this, in addition to improving business and economic opportunities will also support the efforts of restrictions in Indonesia which is quite high.