The DVB-T equipment that has been listed in the European standard, how to convert to DMB-T?
National departments at all levels, especially the constituent units of the National Digital Television Leading Group, have emphasized on different occasions that terrestrial digital television standards with independent intellectual property rights must be formulated rather than choosing other standards. This means that the system that launched the European DVB-T standard not only failed to meet the requirements of national standards, but also faced continued
After the DVD, another round of paving the way for huge patent fees paid abroad was laid.
DMB-T has so far been able to fully meet the application of terrestrial digital TV in China in terms of technological advancement, industrialization, and operational feasibility. For the operation department that has already been equipped with European DVB-T equipment, especially many terminal receiver set-top boxes that have been installed, this part of the investment will mean a lot of risk. Because the Tsinghua DMB-T standard and the European DVB-T standard use completely different technical systems, they are completely different from error correction coding, signal modulation, frame structure, synchronization technology, etc., and it is impossible to solve it by software upgrade.
From the perspective of engineering practice, the replacement of the European standard DVB-T with Tsinghua DMB-T system requires the replacement of front-end equipment such as exciters and single-frequency network adapters, especially the receiver set-top box.
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