Citat:
deejayice kaže:
Da li ovo znaci, posto imam samo kablovsku TV, da mi digitalni tjuner na kartici nece ni trebati?   |
A ko to da zna? Standard za kablovsku distribuciju digitalnog signala je bio DVB-C, sad je uveden i DVB-C2. U tekstu iz Blica se kaže da onima koji koriste kablovsku digitalni tjuneri neće trebati. Šta to znači, da će kablovski sistemi konvertovati digitalni u analogni signal i da neće koristiti ni DVB-C ili C2? Ili će ići paralelno i digitalni i analogni? Ja apsolutno nigde nisam video konkretno objašnjenje. Verovatno još uvek niko i ne zna šta će biti, tipično za Srbiju.
Ljudima su godinama uvaljivani DVB-T televizori sa obrazloženjem da će s njima moći da prate predstojeći digitalni signal bez dodataka. Sad sve to puj pike ne važi i uvodi se DVB-T2, za koji praktično nema uređaja u prodaji. I da li će neko da odgovara zbog obmane kupaca? Neće niko, ovde se odgovara samo ako ukradete kesicu čipsa u samoposluzi. Ostalo je dozvoljeno.
Zanimljivo je da DVB.org u slučajevima poput našeg preporučuje DVB-T a ne DVB-T2:
Citat:
A significant number of countries, in Europe, Southeast Asia, Africa, the Middle East and Latin America, are planning for the launch of DVB-T services in the next 2-3 years. These countries will benefit from the use of a mature technology that is flexible enough to meet their individual market requirements. In particular they will benefit from the existence of a well-established world market both for receivers and for head-end equipment. These conditions will enable the rapid roll-out and take up of DTT services in these countries, with access to cheap receivers being the key factor. The transition from analogue to digital services is what DVB-T is designed for.
In this timeframe it is neither feasible nor advisable to consider launching services with DVB-T2. The new standard is designed for a post-ASO environment, where DVB-T services are already well-established. Products that implement the DVB-T2 standard are not likely to become widely available until 2010. Whilst prices will fall over time, in line with past experiences for DVB technologies, they can be expected to be relatively high initially. This means that DVB-T2 should not, in the short to medium term, be considered for the launch of free-to-air multichannel standard definition services targeted at migrating a general population from analogue to digital. DVB-T is ideal for these purposes.
(...)
In some countries, notably in Latin America and parts of Asia, debate continues as to which of the available DTT transmission systems should be adopted and deployed. The DVB Project believes that the adoption of DVB standards in such territories would bring maximum benefit for all stakeholders, including broadcasters, regulators, manufacturers and, perhaps most importantly, viewers. Regardless of which analogue transmission system is used, and regardless of the channel bandwidth used, DVB-T offers a uniquely flexible solution that will enable a smooth transition to DTT. The key factor, particularly in countries with a high penetration of terrestrial TV and relatively low average incomes, will be the price and range of receivers. It is clear that DVB-T is the ideal technology in these circumstances.
http://www.dvb.org/technology/dvbt2/
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