The level of Internet equipment in Russia reaches high values, however, huge areas of our country still do not have access to the worldwide network. There is a lack of infrastructure, but satellite Internet can solve the problem of its shortage. It has a number of advantages over “cable” and mobile communications, it is becoming increasingly affordable, and the equipment that provides access to it has only become cheaper over the years and is becoming increasingly easy to install.
What is satellite internet
Today, Internet access is possible via satellite (AES), the signal from which goes directly to the user's computer connected to the dish. At the same time, this access method should not be identified with the wired connection to the provider, which itself takes the data from the satellite - in this case, the trunk channel is rented, which has incomparably more powerful traffic than using a dish. Satellites, as a rule, are located in geostationary orbit (less often - at medium and low).
Access to the World Wide Web from a “dish” is, as a rule, comparable in its speed characteristics to broadband lines and considerably exceeds 3G and GPRS connection methods. What unites the last two types of connection to satellite Internet is the limitation in traffic volume caused by technology. However, such tasks as reading letters, sending documents, working with online banking "plate" copes. It is indispensable outside the city - where there is no communication from cellular operators or its quality is not enough. Modern equipment for communication with the satellite is becoming increasingly easy to use, an ordinary user has no problems with how to connect satellite Internet independently.
Satellite internet history
The first experiments with Internet access via satellite began to be carried out at the beginning of the 90-s. Different technologies were offered to the market, but in the end access to the World Wide Web via geostationary satellites was chosen - the same class used for telephone and television communications. Gradually reduced the cost and decreased in the amount of ground communications equipment, satellite networks have ceased to be an expensive prerogative of the state, they began to use the business.
As a result, the term "VSAT" (terminal, where a very small aperture), denoting a compact and mobile device for receiving the signal. As the technologies improved and further reduced the cost, VSAT modules became available not only to businesses, but also to ordinary users, home antennas appeared at all - the very “plates” on the windows, and satellite Internet, reviews of which began to be printed on the press pages about technology.
Asymmetric access is one of the two main formats for using satellite Internet. It implies connecting to the World Wide Web through two channels of different speed and technologies, and the “plate” can be only one of them. The second is, as a rule, a ground connection (sometimes with a much lower data transfer rate). The main advantage of asymmetric access is the price. As a rule, Internet access kits using this technology cost no more than 300 dollars, and traffic costs about 10 cents per 1 MB.
Incoming traffic, thanks to the satellite, is served at a very high speed. As a rule, with the same satellite, you can also receive a television signal if you have tuned equipment (some providers include television and satellite Internet — Tricolor, for example) as a package. The main drawback is the presence of a land channel, which may simply not be available. From what type of connection will be, outgoing speed depends. It may not be high enough to perform a number of tasks - sending large files, communicating through video calls.
There is also a symmetric (“two-way”) satellite Internet. Feedback from users about it - the most positive. Within it, the communication kit is provided not only with the receiving antenna, but also with a device (subscriber station) capable of transmitting a signal to the satellite. It has all the same advantages as the asymmetrical version, but it does not have the disadvantages associated with the second channel. True, the speed of outgoing traffic, as a rule, is lower than the incoming one (the subscriber station is not always powerful enough), but it is enough to comfortably use the main Internet services.
Among the more significant drawbacks is a very high price, several times higher than that of sets with asymmetric access. But there is an indisputable advantage: you can access the Internet from virtually anywhere on the planet. Fans of round-the-world expeditions sometimes have no alternatives other than to connect satellite Internet with symmetric access.
Satellite internet speed
As a rule, there are no standard rates of speed guaranteed by the tariffs of the satellite Internet provider - but the user has the right to expect “incoming” traffic at the level of 5-10 megabits / sec. Anyway, it all depends on the degree of congestion of the channel. At the same time, it is interesting that with a satellite connection, the download speed of various objects is “summed up”. For example, if a user simultaneously downloads 100 images, each of which has a volume of 1 MB, then it will spend as much time as if downloading one “megabyte” image. Incredibly, this is satellite Internet. Providers' rates, by the way, do not take into account this particular feature and are always charged on the fact of the downloaded data. However, this interesting property also depends on the capacity of the land line, since the AES will require a response from the computer for each of the received pictures: if it does not follow, the image will not be transmitted. If the equipment supports two-way access, then the speed of satellite Internet on the outgoing channel, as a rule, is comparable to the specified figures and can reach values in 8 megabits / sec.
Market Overview in Russia
Experts note that asymmetric Internet access via satellite has not received proper distribution in Russia. There are a number of reasons for this: firstly, the lack of the necessary technological infrastructure of providers, secondly, the difficulty of connecting devices, and thirdly, the lack of development of the second communication channel in the country. At the same time, the market of two-way satellite access is very actively growing in Russia (although its figures, in comparison with the indicators of the wired Internet, are still small).
There are predictions that by the end of 2016, the number of Russian users will grow to 35 thousand people. In many ways, this trend is associated with cheaper equipment that requires satellite Internet. Reviews of consumers of this service allow many market experts to look at the development of the segment optimistically. Leading providers of this technology see their main target audience as owners of private houses in suburban communities.
How is the "satellite" better than the "cable"?
On the benefits associated with geographic coverage, we have already said. We only note that, according to some experts, in very many Russian regions, including those located in the European part of the country, there are problems with competing solutions - 3G, fiber.
The most important advantage of satellite communications is the cheaper infrastructure that may be needed to distribute channel resources among other users. Satellite Internet is able to "diversify" access to the World Wide Web, and this property is indispensable, especially for businesses. Including those who work in cities: it is often the case that the provider refuses to work, and the ability to receive or send important documents on time may be much more important than the cost of installing satellite equipment.
And the worse, respectively
First, physically, the antenna only works when it is “looking” at the satellite. If, say, the office or home of the user is located on the wall opposite to the “flight” of the satellite, then the connection will fail. Secondly, during data exchange with the participation of the satellite, there is, as a rule, a rather large “ping” (signal delay between sending and receiving). This property can bring discomfort, for example, when making audio and video calls, as well as when using entertainment services for which many people access the Internet: a network of game "polygons" for fans of multiplayer action games can, for example, hang up with a long response time. Thirdly, the IP address of the user who “caught” the satellite does not always correspond to the country and city where the connection is established. This may prevent you from working with Internet services that require accurate geolocation (for example, search engines, social networks). Fourthly, many experts are unflattering about security - it is not always high when using satellite Internet. Specialist testimonies indicate potential vulnerabilities in terms of intercepting traffic from the HIS.
Access systems to the World Wide Web through satellites, as mentioned above, are constantly becoming cheaper and more advanced. A few years ago, Russian providers set themselves the task of creating a satellite Internet, tariffs for which would be comparable to those offered by wireline operators. The government has allocated several billion rubles for this purpose. These funds were used to create projects of innovative communication satellites (four of them are planned to be introduced). It also assumes the infrastructure on the ground, which will include a control center and several communication stations with satellites.
The project will be managed by the largest public telecommunications companies. With the help of cheap satellite equipment, the government hopes to create a “popular Internet” accessible throughout Russia. The customer audience of this service is estimated at 2 million subscribers. According to experts, people need satellite Internet, prices for which will be lower than current market indicators.