Probably every Internet user already knows how the World Wide Web has grown in recent years. And it continues to grow more rapidly. Increasing development of multimedia services become character. In practice, each has a large television or radio broadcasts at the same time the broadcast and the Web. Using the Internet, you can watch movies, go shopping, play the stock market In this regard, emphasis is increasingly becoming a question speed access.
Not in every major city can set yourself a good selection line, and suburban homes in general is a special subject. Not to mention the fees Operators of large cities, where there is a strong trunk channels in the first all, of course, tend to saturate the market town and its suburbs (population and enterprises). Judging from their reports, the situation promises to endure for long enough. The fact that in small towns, settlements and other small towns is of great importance to the issue of "last mile". Still, "internetization" town or, for example, a number of nearby villages with low population density threatens costly to build and service network, and thus extremely low returns. Therefore, all is a growing satellite Internet access. In this case, too, progress is not standing still.
In addition to the asymmetric Internet access, which is firmly came into our life with the advent of DVB-cards appeared household satellite stations vsat – satellite system terminals DirecWay. Their cost is incomparably lower than the cost of professional stations and is comparable to the value of a good home computer. Symmetric satellite Internet access DirecWay. What is it? This complex of specialized services and satellite equipment designed for organizations and for private users, small Internet operators and home networks. Differs sufficiently low rate plans, many of which are much lower tariffs for access to the Internet via leased lines in major cities. At the same time supported extremely high-quality services. There rates from 150 Mb / month prior to unlimited, even in developed cities is still a rarity. Average connection speeds ranging from 256 kbps to 2 Mbps. What is the fundamental difference symmetric from the asymmetric satellite access? The main difference lies in the fact that a symmetric (bidirectional) satellite access works independently from terrestrial providers. He is completely independent and mobile. You do not need a modem, leased line or mobile phone. Accordingly, you will not pay any extra money for it. Two-way satellite internet works almost anywhere in Russia, whether it be a small village or a huge metropolis. For mobile access there homing system iNetVu. Also, the network operator the opportunity to use the telephone. How does it work? Roughly speaking, information from subscriber is sent to the satellite, then sent to the control station operator, and from there back to the satellite and then to the subscriber. Between the computer, or rather, a satellite terminal and the operator is organized direct communication channel via satellite technology vsat / DirecWay. It can be constant (RAMA) or temporary (the compound of the request (DAMA) or frequency / time division (FDMA / TDMA), a connection is established automatically.) Type of connection depends on service plan. Satellite terminal operates autonomously and requires no maintenance by the user. What to do this? For symmetric Internet connection, you need to buy a satellite terminal (this a kind of "external modem"), an antenna suitable type and arrange permission for the use of radio frequencies. Next, you need to mount the antenna to aim it at the moon and carry out a series of papers on the organization of the channel.