Technical Interoperability of DTH Set top Boxes
The method of reasoning behind specialized interoperability is that clients ought to have the capacity to change starting with one DTH administrator then onto the next without purchasing another operators Customer Premises Equipments (CPE). This method of reasoning was justifiable when the DTH market was little with just a couple of administrators, and the cost of the CPE not exceptionally aggressive. Be that as it may, today there are six private DTH administrators separated from DD Direct. The cost of the CPE is not any more restrictive. Throughout the most recent 4 years, showcase powers have guaranteed reasonableness today, as all DTH administrators have sent generous endowments specifically to every one of their supporters. It is a built up financial rule that barely focused on endowments are the most monetarily productive method for guaranteeing reasonableness. The DTH administrators have tended to the prime worry of open strategy and consequently Interoperability is not of material importance in todays economic situations.
It is impractical to have an Open Architecture based Set Top Box (STB) for DTH administrations that could guarantee specialized interoperability i.e. specialized similarity and viable interoperability among various DTH administrators who have embraced same or diverse norms. Utilization of various CAS, pressure, encryption, middleware and EPG make the STB exclusive and henceforth such STBs can’t be 100% between operable. Specialized interoperability is conceivable just by method for a CAM and approved card from the individual administrator, which is the situation today. Indeed, even with an Open Architecture-based STB for DTH, it is impractical to make it work over any administrator without a CAM (just Card) unless the Conditional Access (read security) programming for every sort (utilized crosswise over stages) is ported on such a container to make it work for translating.
Today, there are various blends of advances that can go into making of a solitary Set Top Box (STB). Diverse DTH administrators are utilizing distinctive mixes, which have as of now been recorded in the counsel paper.
On the off chance that a solitary STB is to be made good with all extraordinary innovations, including:
(a) Compression innovation: MPEG 2 and MPEG 4;
(b) Transmission innovation: DVB-S and DVB-S2; and
(c) different encryption advancements,
the cost will undoubtedly go up altogether. The expanded cost of a STB would overcome the very reason for specialized between operability, as the extra cost would need to be recouped from clients.
The other option which has frequently been proposed is to endorse a solitary innovation standard by Bureau of Indian Standards (BIS) to be embraced by all DTH administrators. This standard will actually must be with regards to the presently accessible advancements. This would imply that DTH administrators utilizing more established, however not obsolete advancements, for example, MPEG 2 and DVB-S would need to create, make and obtain new CPE.
The cost required in such a practice would be considerable, and would need to be borne by any one or any mix from among the accompanying:
(a) the Government which would have ordered uniform innovation standards in any case
A genuine disadvantage of any takeoff from an innovation unbiased approach would be the requirement for consistent modification of the endorsed innovation standards so that the DTH business in India keeps pace with, and gets advantage from the most recent mechanical advancements universally.
Every time the endorsed innovation standards are modified by BIS, existing CPE would need to be supplanted.
It is relevant to say that TRAI itself, in its latest proposals dated on 22.07.2010 on Policy Issues identifying with Uplinking/Downlinking of Television stations in India, has prescribed an innovation impartial approach. TRAI has supported the view that market powers will themselves guarantee that the DTH administrators embrace the best accessible innovation, and there is no compelling reason to issue any order in such manner. TRAI, in the previously mentioned paper has additionally noticed that decision of innovation is not a one-time choice, but rather a choice that should be always audited and overhauled
The likelihood of giving specialized between operability by the utilization of a CAM is financially not attainable, as on date. The thought is that by embeddings a CAM gave by the DTH administrator whose administrations are required to be gotten, the STB will be in a position to get the administrations of the concerned DTH administrator. In any case, the cost of a CAM as on date is as high as a STB itself, making it an impracticable thought from a monetary perspective, as any client would want to purchase another STB from another DTH administrator, instead of buying a CAM that would be embedded into an old STB of his past DTH administrator
Existing specialized between operability conditions have not conveyed, and are probably not going to convey, the outcome that they were intended to accomplish, i.e., help of real relocation of clients starting with one DTH administrator then onto the next without the requirement for acquiring new CPE. These conditions have turned out to be repetitive. The Ministry of Information and Broadcasting in its letter dated 28.09.2007 to TRAI had unequivocally expressed that “the interoperability between set top boxes between two DTH administrators is essentially not possible to the level of culmination. As the quantity of administrators has duplicated, and more up to date innovations have arrived, the achievability of specialized interoperability (without critical expansion to the cost of STB, in this manner overcoming the very motivation behind specialized between operability), is even less today when contrasted with 2007 when the Ministry composed the letter alluded hereinabove.
In this way, the absence of interoperability is not by virtue of poor buyer mindfulness or the non-accessibility of CAMs, but since of unfeasibility on essential specialized and monetary grounds.