Types of Digital TV

Throughout the world there are three digital TV standards, namely: Digital Television (DTV) in the USA, Digital Video Broadcasting Terrestrial (DVB-T) in Europe and the Integrated Services Digital Broadcasting Terrestrial (ISDB-T) in Japan. All of the above standards-based OFDM by Reed Solomon error correcting code and / or convolution code and the audio is MPEG-2 with Audio AAC coding to ISDB-T and DTV and MPEG-1 layer2 for DVB-T.

Japan makes their standards in terms of this Digital TV. Compared with DTV and DVB-T, ISDB-Tnya Japan reportedly is very flexible and has advantages especially in recipients who move (mobile reception). ISDB-T is more resistant to the Doppler Effect. ISDB-T which is one of two brothers of ISDB-S (for transmission via cable) and the ISDB-S (for satellite), can also be applied to systems with a bandwidth of 6.7 MHz and 8MHz.

Flexibility ISDB-T can be seen from the mode used, i.e.: fashion an SDTV for mobile applications, mode 2 for the application of mobile and fixed receivers HDTV / SDTV and Mode 3 for the special fixed receiver HDTV / SDTV. All data is flexible for QPSK modulation and 16QAM or 64QAM. Changes in this mode can be arranged through what is called a TMCC (Transmission and Multiplexing Configuration Control).

The Government has set a standard chose DVB-T (Europe). DVB is an open standard technologies (open standards), which means development in a business can be very broad. DVB-T is the youngest of the main system DVB – DVB-C for cable and DVB-S for satellite.

Trial of DVB-T in Indonesia has been conducted by TVRI and RCTI in July-December 2006. Then the DVB-H, DVB-T adaptation for cellular phones, enabling broadcast Metro TV, SCTV and TVRI can be enjoyed on the Nokia N92.

Indonesia has a number of radios and TV stations the second largest after China. This country has one public TV, 10 private national TV, 70 local private TV, two cable TV, a satellite TV and more than 1,800 radio stations.