Many people in the 21st century are interested in stable and high-speed Internet access. By carefully studying all available offers, you can give preference to satellite Internet, which is popular in Lately only growing. However, in order to make the appropriate choice, it is extremely important to understand what the features of satellite Internet are, what advantages and disadvantages it is advisable to take into account.

Features of satellite Internet

Nowadays, satellite communications are unilateral And bilateral. In the first case, data is received via satellite channel with subsequent transmission via an alternative channel, and in the second case - reception and transmission only via satellite. At the same time, there is a more active development of two-way satellite Internet, which is implemented using modern VSAT technology.

In most cases, the use of fairly expensive equipment is assumed, which includes high-frequency units (receiving and transmitting), a transceiver antenna, and a satellite terminal. In this case, connecting a computer or local network is implemented precisely through a satellite terminal.

The following ranges can be used for signal transmission: C, Ku, Ka. It should be noted that band C is used the least often, since it is adapted only for one-way data transmission, and the antennas must be larger in size and have powerful transmitters.

It should be noted that satellite Internet is most often offered in the Ku band, since it is characterized by a wide coverage area and allows the use of small, inexpensive power transmitters. If you focus on the Ka band, you need to pay attention to the fact that its popularity is still growing and the mandatory use of new satellites is expected.

Advantages of satellite Internet

Satellite Internet, which is becoming increasingly popular, has important advantages. So, what should you focus on?

1. High speed. It is expected that it will be possible to obtain much higher speeds compared to a standard modem connection. However, the speed will still be slower than fiber optic cable or DSL technology.
2. Satellite Internet is available even to those living in rural areas. This is due to the fact that many village residents cannot install a cable or take care of connecting a DSL or FIOS line.
3. Internet access via satellite equipment is possible almost anywhere. This is due to the fact that there is no dependence on fixed line. At the same time, fiber optic cable, DSL, FIOS lines require only fixed connections.

The above advantages allow you to count on the opportunity to take care of a full-fledged Internet connection, which will be stable and at optimal speed.

Disadvantages of satellite Internet

It is important to be prepared for the fact that even satellite Internet has quite serious disadvantages. For this reason, you cannot count on an ideal connection to the World Wide Web.

1. Pricing. Satellite connections are expensive broadband connections if you intend to use shared network. If preference is given to an individual connection, you will have to allocate a fairly large amount to purchase a satellite dish and its subsequent installation.
2. Almost all providers try to impose FAP. The following condition is assumed: exceeding the limit causes the connection speed to drop to the minimum. Thus, if you do not take care of drawing up an agreement with special conditions, communication with the Internet can be extremely slow.
3. Satellite internet still available depends on weather conditions. Bad weather will definitely degrade the quality of communication. Moreover, if water gets on the satellite dish, the Internet will no longer provide decent quality.
4. Internet performance slows down due to latency or latency. This factor must be kept in mind.
5. Terrain quality also has a serious impact on the quality of Internet access.

It should be noted that satellite Internet is proving to be the most problematic these days. However, this option is suitable if it is not possible to use high-speed Internet using other technologies.

What is required for satellite Internet?

To connect to satellite Internet you need special equipment, the cost of which still remains quite high. In addition, providers are just beginning to develop, so you need to be prepared for fairly expensive tariffs.

Over the past few years, satellite Internet technology has become increasingly accessible, but the financial issue remains quite acute.

Recently, many providers have been offering a “boxed solution” that includes an antenna, transmitter and modem. Equipment is always selected to suit targeted queries customer.

It should be noted that minimal technical training is sufficient for self-installation equipment that provides connection to the Internet, but it requires installing software and taking care of correct setting. Instructions are presented on the provider’s official websites and in the boxed solution, so if you wish, you can try to carry out the procedure yourself.

In fact, the advisable solution would be to turn to professionals who can easily set up the Internet.

Satellite Internet deserves a fairly high level of popularity, since it is aimed at guaranteed constant access to the World Wide Web and at optimal speed in favorable weather.

Many people living far from large cities with familiar fiber optic and high-speed connections access the Internet via a satellite dish.

This is a really good solution - you can install it almost anywhere in order to take advantage of all the opportunities that the World Wide Web provides.

In contact with

What is satellite internet

There is no need to tell someone today what the Internet is. Almost every person visits the World Wide Web regularly or from time to time.

The easiest way to solve the problem is in large populated areas - you can always connect fiber optics. Need freedom of action? Use a 3G modem - you can move freely without fear that the speed will decrease.

What to do if you live or work far from a populated area, where there is not even a mobile connection? In this case, you will have to connect the Internet via satellite.

At the same time, a specially tuned antenna allows you to connect directly to a satellite currently passing over a specific point on the Earth, ensuring a stable connection.

Advantages and disadvantages of satellite Internet

Like most solutions, home satellite Internet has certain pros and cons. It is very important to know about the first and especially the second, so that after purchasing equipment you do not have to regret a bad decision. Let's start with the main advantages:

• ease of connection;
• the ability to not depend on conventional providers and their interruptions in electricity and equipment;
• high speed and stable connection;
• Internet connection from anywhere in the world.

Alas, with such important advantages, the Internet via a satellite dish is not without serious disadvantages.

First of all, this is the high cost of equipment - you will have to spend a considerable amount to purchase required kit. In addition, you will need to obtain special permission to use radio transmitting equipment.

Important! Equipment from different manufacturers may not be compatible. It is better to buy ready-made kits so as not to encounter such a problem later.

Communication channels often experience a delay of 500-800 ms. Such a significant delay may not always be acceptable.

Having learned about the main strengths and weak sides Satellite Internet connection, you can choose the appropriate connection.

Types of satellite connection

Today, to ensure reliable communication, two types of connections are used: one-way and two-way. They have a number of important differences, which are very important to learn about before you finally decide on the most suitable option. Let's tell you more about each of them.

Unilateral

This type of connection, also known as asymmetrical, has received relatively little distribution. Because for its normal functioning you need not only satellite Internet at home or at work, but also a terrestrial connection.

Why, in this case, do you need communication via the Internet at all? Sometimes, when connecting via ADSL or GPRS, the Internet speed is too low, or the incoming traffic is too expensive. In this case, a one-way connection will be a good choice.

The fact is that incoming traffic with such a connection goes through the satellite, but outgoing traffic goes through the local provider. During normal browsing on the Internet, searching for information and doing other work, the ratio of incoming and outgoing traffic is approximately 10 to 1. And when downloading files, the ratio is even more impressive: 100 to 1. Consequently, the costs will be much lower. To connect you will need the following equipment:

• satellite antenna;
• satellite board;
• amplifier converter.

The kit costs significantly less than with a two-way connection. And during operation you can save a lot of money.

Prices for satellite dishes

satellite dishes

Bilateral

If you choose this method of communication, you will have to spend serious money to purchase the necessary equipment. In addition, incoming and outgoing traffic will cost you significantly more.

But you find yourself completely independent of any providers and mobile communications - all information is transmitted exclusively via satellite, but you can access the Internet from anywhere on the planet, be it the taiga, the African desert or Antarctica.

The kit required for connection includes the following equipment for satellite Internet:

• transceiver antenna;
• satellite modem;
• transmitting and receiving blocks.

Decide for yourself what is more important to you: low cost or complete autonomy.

Operating principle

With a two-way satellite connection, the principle is as simple as possible. The satellite is used for both transmitting and receiving information. The request issued by the client is transmitted to the satellite, and from there to the provider, to the receiving station. In turn, the provider transmits the request to the Internet. When receiving the necessary information from the specified site, the provider immediately sends the data via satellite to the client. Moreover, this happens very quickly - the delay is measured in fractions of a second, so in most cases the user does not even notice it.

If satellite TV and Internet are in a private house transmitted through a one-way connection, the principle of operation changes significantly.

The user sends a request to a local provider whose connection is too expensive or slow. This request it is immediately transmitted to the satellite, where servers process it, transmit it to the Internet, and upon receiving the necessary information, send it directly to a satellite dish installed in the user’s yard. The delay in this case is significantly less.

Satellite providers

Today in our country there are dozens of companies offering the popular satellite Internet service. How to choose the right one from them? We list a few whose services are most popular thanks to affordable price and high quality.

1. SatGate. It is reliable and offers an easy-to-learn personal account. The speed is not too high, and the fee is quite affordable - most users can afford such a connection.
2. Hi-Steam. One of the most budget-friendly providers - its services will cost the user very little. Personal Area has an intuitive interface. The speed is excellent. The only drawback is that when working with Internet programs, you need to register the required data from the proxy server each time.
3. Tricolor-TV. Perhaps the most famous satellite provider in our country. Accessible unlimited Internet with good speed. However, some connection equipment will have to be purchased at your own expense.
4. Rainbow. Offers services over asymmetric Internet. Allows you to cover almost the entire territory of Russia, except for some eastern and northern regions. Affordable, convenient and fast.
5. SkyDSL. Another provider specializing in asymmetric connections. Covers a significant part of our country, offering services at very affordable prices.

Of course, before deciding on a provider, you need to find out the tariffs, terms of cooperation and much more. Only after this is it worth buying an Internet dish for a private home and connecting it.

What tariffs do providers offer?

Today, people who are accustomed to actively using the Internet can get a stable high-speed connection for a relatively small amount. The main reason for this is serious rivalry between large providers. But when choosing suitable tariff should be done very seriously.

First of all, you should pay attention to three factors:

• price;
• speed;
• traffic volume.

Everything is clear with the cost - the more you pay, the best rate you can afford it. Speed ​​determines how comfortable and easy it will be to work on the Internet - the same data can be transferred in a second or in ten seconds. Finally, the volume of traffic.

Some providers apply a limitation - the cheaper the tariff, the less data you can download per month - you will have to pay extra for each subsequent megabyte. However, more and more companies prefer unlimited tariffs. They cost a little more, but you can download any amount of information.

Important! When purchasing a large traffic package, the user pays significantly less per megabyte. The higher the fee, the cheaper it will be to download important data.

In addition, it should be taken into account that there are one-way and two-way Internet different tariffs. One-way usually has a lower speed, but you will have to pay less - this is where unlimited is most often found. With two-way, you will have to pay for the traffic package, as well as for all additional information downloaded. But the speed will be higher, which will please users.

Connecting satellite Internet yourself

Of course, many would prefer to connect satellite Internet with their own hands than to use the services of specialists, for which they will have to pay a lot. However, very few people know how to connect to a satellite. Let's look at the whole procedure in more detail so that the reader understands the problem and can solve it. Let's start by setting up the Internet with a two-way connection.

All work can be divided into several stages:

1. Getting coordinates. Using free program– Satellite Antenna Alignment, you can get the desired coordinates. To do this, you need to enter your own location, and you will receive the required angle, azimuth, as well as other data that will be useful when orienting the antenna.
2. Installing a satellite dish on the roof or wall of a building. In some cases best choice There will be installation on a special mast. Here it is important to check the angle of inclination - the antenna mirror should be directed strictly at the satellite. To do this, you will need a simple compass, which can be used to determine the desired angle and azimuth.
3. A DVB card is inserted into the computer PCI slot. It is needed as a satellite modem that will receive the signal, convert it and transmit it.
4. Leveling the antenna. It must be within a very narrow range. It is better to do this together - one person will adjust the position of the dish, while the other will monitor the signal status in order to notify in time that a stable connection has appeared.

After this, you can test your connection speed on a special website and get to work.

If you want to find out how to connect satellite Internet via a Tricolor dish by choosing an asymmetric connection, then there will not be any special problems with this. First, you need to connect a cable or 3G modem and make the necessary settings to connect to the provider. Secondly, repeat the steps described above to tune in to the satellite, and you will definitely be able to set up the Internet with your own hands.

Prices for a set of equipment for satellite Internet Tricolor

satellite internet kit

Is it possible to connect to free internet via satellite?

Of course, every person who bought a satellite dish for the Internet would like to enjoy the benefits world wide web and not pay for it. Alas, this is impossible. Sit on social networks, play Online Games, you won’t be able to communicate with loved ones via Skype for free. But there is such a thing as “Satellite fishing”. What is this? Let's tell you in more detail.

The satellite can simultaneously serve hundreds and thousands of users. It sends information in gigabytes. And using special programs for “Satellite fishing”, you can intercept the same data that other users download. In this case, you really won’t pay a penny to the provider. But it is not a fact that the information received will be useful to you. These could be photographs, music or even entire films. Alas, the data will have to be sorted, leaving useful ones and removing unnecessary ones.

Useful video: Do-it-yourself satellite Internet

Now you know whether it is possible to connect to the Internet via a satellite dish, you have an idea about different types connections and even figured out how to get interesting data from a satellite for free. We hope you find this information useful.

The level of Internet provision in Russia is reaching high levels, but large sections of our country still do not have access to the World Wide Web. There is not enough infrastructure, but satellite Internet can solve the problem of its shortage. It has a number of advantages over cable and mobile communications, is becoming more and more affordable, and the equipment that provides access to it is only getting cheaper over the years and becoming easier to install.

What is satellite Internet

Today, access to the Internet is possible through a satellite (satellite), the signal from which goes directly to the user’s computer connected to the “dish”. This method access, however, should not be identified with wired connection to the provider, which itself takes data from the satellite - in this case, a trunk channel is rented, which has incomparably more powerful traffic than when using a “dish”. Satellites, as a rule, are located at (less often - at mid-altitude and low).

Access to the World Wide Web from a dish is usually comparable in speed characteristics to broadband lines and is significantly superior to 3G and GPRS connection methods. What the latter two types of satellite Internet connections have in common is technology-induced limitations in the amount of traffic. However, the “plate” copes well with tasks such as reading letters, sending documents, and working with online banking. It is also indispensable outside the city - where there is no connection from cellular operators or its quality is insufficient. Modern equipment for communication with satellites is becoming more and more simple to operate; the average user has no problems connecting satellite Internet on his own.

History of satellite Internet

The first experiments with Internet access via satellite began in the early 90s. Various technologies were offered to the market, but in the end they chose access to the World Wide Web through geostationary satellites - the same class used for telephone and television communications. Gradually, terrestrial satellite networks became cheaper and smaller in size; they ceased to be an expensive prerogative of the state; business began to use them.

As a result, the term "VSAT" (Very Small Aperture Terminal) came into being, denoting a compact and mobile device upon signal reception. As technologies improved and continued to become cheaper, VSAT modules became available not only to businesses, but also to ordinary users, and even “home” antennas appeared - those same “dishes” on windows, and satellite Internet, reviews of which began to be published in the press. about technology.

Asymmetrical access

Asymmetric access is one of the two main formats for using satellite Internet. It involves connecting to the World Wide Web through two channels of different speeds and technologies, and the “dish” can only be one of them. The second is, as a rule, a terrestrial connection (sometimes with a much lower The main advantage of asymmetric access is the price. As a rule, kits for accessing the Internet using this technology cost no more than $300, and traffic is about 10 cents per 1 MB.

Incoming traffic, thanks to the satellite, is supplied at very high speed. As a rule, from the same satellite, if you have configured equipment, you can also receive television signal(some providers include both television and satellite Internet in their service package - Tricolor, for example). The main disadvantage is the presence of a terrestrial channel, which simply may not be available. From what type it will be this connection, outgoing speed depends. It may not be high enough to perform a number of tasks - sending large files, communicating via video calls.

Symmetrical access

There is also symmetric (“two-way”) satellite Internet. Reviews from users about it are the most positive. Within its framework, the communication kit is equipped not only with a receiving antenna, but also with a device (subscriber station) capable of transmitting a signal to an satellite. It has all the same advantages as the asymmetric version, but it does not have the disadvantages associated with the second channel. True, speed outgoing traffic, as a rule, 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 shortcomings are the very high price, several times higher than that of sets with asymmetric access. But there is also an undeniable advantage: you can access the Internet from virtually anywhere on the planet. Fans of around-the-world expeditions sometimes have no alternatives but to connect satellite Internet with symmetrical access.

Satellite Internet speed

As a rule, there are no standard speed indicators guaranteed by the tariff by the satellite Internet provider - but the user has the right to expect “incoming” traffic at the level of 5-10 megabits/sec. One way or another, it all depends on the degree of congestion of the channel. At the same time, an interesting fact is that with a satellite connection, the download speed of different objects is “summed up”. For example, if a user simultaneously downloads 100 pictures, each of which has a volume of 1 MB, then he will spend the same amount of time as if he were downloading one “megabyte” picture. Incredibly, such is satellite Internet. Tariffs of providers, by the way, do not take this feature into account and are always charged based on the fact of downloaded data. However, this interesting property also depends on the capacity of the ground line, since the satellite will require a response from the computer for each of the received images: if this does not follow, then the image will not be transmitted. If the equipment supports two-way access, then the satellite Internet speed on the outgoing channel is usually comparable to the indicated figures and can reach values ​​of 8 megabits/sec.

Market overview in Russia

Experts note that asymmetric Internet access via satellite has not become widespread in Russia. There are a number of reasons for this: firstly, the lack of the necessary technological infrastructure among providers, secondly, the difficulty of connecting devices, and thirdly, the insufficient development of the very second one in the country. At the same time, the market for two-way satellite access is growing very actively in Russia (although its figures, in comparison with those of wired Internet, are still small).

There are forecasts that by the end of 2016 the number of Russian users will grow to 35 thousand people. This trend is largely due to the cheaper equipment that satellite Internet requires. Feedback from consumers of this service allows many market experts to be optimistic about the development of the segment. Leading providers of this technology see their main target audience owners of private houses in suburban areas.

Why is satellite better than cable?

We have already talked about the advantages associated with geographic coverage. Let us only note that, according to a number of experts, in many Russian regions, including those located in the European part of the country, there are problems with competing solutions - 3G, fiber optics.

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 capable of “diversifying” access to the World Wide Web, and this property is indispensable, first of all, for businesses. Including those who work in cities: it often happens that the provider refuses to work, and the ability to receive or send the most important documents on time can be much more important than installation costs satellite equipment.

And what, accordingly, is worse

Firstly, purely physically, the antenna works only when it “looks” at the satellite. If, say, the user’s office or home is located on the wall opposite the “flight” of the satellite, then communication will not be established. Secondly, when exchanging data with the participation of a satellite, as a rule, a rather large “ping” is observed (signal delay between sending and receiving). This property can cause discomfort, for example, when making audio and video calls, as well as when using entertainment services for which many people go online: a network of gaming “test sites” for fans of multiplayer action games can, for example, freeze when the response takes a long 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 interfere with Internet services that require precise geolocation(For example, search engines, social media). Fourthly, many experts speak unflatteringly about security - it is not always high when satellite Internet is used. Feedback from experts indicates potential vulnerabilities in terms of intercepting traffic from artificial satellites.

Innovative look

Systems for accessing the World Wide Web through satellites, as mentioned above, are constantly becoming cheaper and improved. Several years ago, Russian providers set themselves the task of creating satellite Internet, the tariffs for which would be comparable to those offered by “wired” operators. The government has allocated several billion rubles for these purposes. These funds were used to create projects for innovative communication satellites (a total of four of them are planned to be introduced). It is also planned to have infrastructure on the ground, which will include a control center and several communication stations with satellites.

The project will be managed by the largest state-owned telecommunications companies. Using cheap satellite equipment, the government hopes to create a “people's Internet” accessible throughout Russia. The client audience of this service is estimated at 2 million subscribers. People, according to experts, need satellite Internet, the prices for which will be lower than current market indicators.

There are situations when there is no possibility of connecting wired Internet, and there is no nearby wireless networks, and traffic via GPRS/3G channels is either absent or very expensive. For example, you live far from a regional center or the Internet service in your city is poorly developed.

You have the opportunity to connect satellite Internet. To do this, just hang up the “satellite dish”, make the appropriate settings and get the coveted access to the World Wide Web.

In this article I will tell you what satellite Internet is, what set of equipment you need to purchase, and how you can configure the equipment yourself.

The key word, as the name suggests, is Satellite, which is typically located in Earth's geostationary orbit. The main function of a satellite is to transmit information from one point on the planet (from base station) to subscribers located in the satellite coverage area (this is a very large area, which usually includes several countries or the entire European continent).

The coverage area is the main advantage of this technology. For comparison, one base station tower mobile operator covers an area equal to one block or microdistrict. It is not possible to install a cell phone tower everywhere, but a signal from a satellite can be received anywhere in the world.

The information transmitted via satellite communication channels is varied. This includes television, Internet data, telephony, and service requests. Each communication standard uses its own data transfer protocols. The Internet, like modern digital satellite television, uses the DVB-S2 format.

Types of satellite Internet connection

Experts distinguish two types of satellite Internet connections: symmetrical and asymmetrical. This difference is primarily related to the organization of incoming (from the Internet) and outgoing (transfer to the Internet) traffic transmission channels.

1. Symmetrical Internet access implies that data from and to the satellite is transmitted using one antenna and two (or one) transmitter. The cost of the receiver is approximately 500-1000 rubles, but for the transmitter you will have to pay a tidy sum (from 30 thousand rubles). If you buy a complex transceiver right away, it will cost even more.

It is precisely because of the high cost that this type of connection is not popular among ordinary users.

In this sense, it is much more accessible due to its cost-effectiveness. It involves using only an incoming connection via satellite (i.e., only a cheap receiver is required for the antenna), and the outgoing connection is organized through any terrestrial communication channel.

Which can be used as an old modem cell phone, analog modem landline phone(DSL), local cable network.

Efficiency of this type connection is explained by the fact that the user most often uses the Internet to download media content, view email messages or visit social networks. Those. The average user most often sends short requests to the Internet and downloads large amounts of data from the Internet.

Disadvantages of Asymmetric Internet Access

• Due to the low outgoing speed, you will have to give up online calls via Skype (they can be used, but without video broadcasting).
• There is a significant delay in downloading and transmitting information (due to the location of the satellite at a considerable distance from the ground), which leads to a decrease in comfort when playing online action games.
• In heavy rain and snow, the signal quality is slightly reduced.

Organization of satellite Internet

Since the satellite coverage area is huge, the data is transmitted to all users at once. In order for a subscriber to allocate a data channel specifically intended for him, it is necessary to identify his electromagnetic wave (carrier).

The parameters of this carrier are provided by the satellite Internet provider. And they include:

• carrier frequency (MHz);
• symbol rate (kbit/s);
• type of electromagnetic wave polarization (right/left, vertical/horizontal).

In addition, the same carrier wave typically contains data from multiple users. To identify them, special identifiers (PID, LID) and the MAC address of the receiving card (receiver) are used.

Also, to organize a more reliable connection, special programs (accelerators) are used, which, in addition to encrypting the traffic, also compress it, which saves the satellite’s frequency resource and helps increase the data transfer speed.

Equipment selection

The standard set for organizing asymmetric Internet access includes a satellite parabolic antenna, an feed with a built-in downconverter, a cable and a receiver (DVB card).

The main parameter of the antenna is the diameter of its mirror. The larger it is, the greater the gain, and, therefore, better signal reception.

Typically, the diameter of the antenna mirror is selected based on the geographic location of the subscriber and the satellite coverage area (can be obtained from the provider). Most often for home use choose antennas with a mirror diameter of 0.6 - 1.5 m.

A feature of the choice of mounting location is the need for direct visibility between the satellite and the antenna, as well as the orientation of the antenna to the south (for residents of Russia, the geostationary orbit is located in the south).

2). Irradiator (converter). The feed is the receiving part of the antenna, which includes a polarizer, a low-noise amplifier and a downconverter (frequency converter).

The polarizer is determined by the type of polarization used (circular or linear). Although there are now models on the market that use both types of polarization.

For the irradiator also important characteristic is the operating frequency range. Satellite Internet providers operate in the Ku-band (10.7 – 12.75 GHz).

For home use, it is preferable to purchase irradiators with two outputs. This way you can use one antenna to view digital satellite television and to access the Internet.

3). Cable. The main characteristics of the cable are characteristic impedance and attenuation coefficient. The characteristic impedance should be 75 Ohms. And with attenuation everything is simple - the less it is, the better. For a cable 10-15 meters long, attenuation can be ignored.

4).DVB card (receiver). The most popular manufacturers of DVB cards are:

• TwinHan (twinhan.com);
• TechnoTrend (technotrend.ru);
• TechniSat (technisat.com).

The main parameters for choosing a DVB card are the supported data processing protocol and the card interface.

But there is no and cannot be a clear opinion about the card connection interface. Here everyone decides for himself. I used a card with a PCI interface. It was convenient for me - I inserted it into the computer, connected the cable and forgot about the card.

If you use a laptop, it is better to purchase a DVB card with USB interface. Just pay attention to the presence of external power.

There is another option, a card with a built-in GPRS modem. In this case, as a rule, there is also an external GSM antenna. The option, in principle, is also not bad.

5). Software usually supplied with a DVB card. Main function software is setting up a connection and organizing direct asymmetric Internet access, i.e. combining two different data networks: satellite and, for example, GPRS/3G.

Accelerators are also usually included in the software. The most common software is DVB-Data and Tuner4PC.

Conclusion:

In large cities, wired and wireless Internet, and there is probably no need to install a satellite dish.

But for non-regional centers and residents of rural areas, most often there is simply no other alternative. Since the number of providers is steadily growing from year to year, this leads to lively competition and, as a result, lower prices for communication services.

The approximate cost of the equipment will be 2000-3000 rubles. Tariffs for communication services will need to be clarified with your provider (by the way, there are also unlimited tariffs).

Another nice addition to satellite Internet is the availability of free access to open satellite television channels.

The wide demand for the Internet stimulates the development of various data transmission technologies. One of them is broadcasting the signal through satellite dishes. This technology has many positive properties, but it also has a number of disadvantages.

Features of satellite data exchange technologies

Satellite communication can be one-way (reception of data via a satellite channel, and transmission via an alternative channel) or two-way (reception and transmission via satellite). Most often, two-way satellite Internet with VSAT technology is used. The equipment set is quite expensive, it includes a transceiver antenna, high-frequency receiving and transmitting units, a satellite terminal to which a computer or local network is connected.

Signal transmission can be carried out in 3 main ranges - C, Ku, Ka. Band C is rarely used, usually for one-way data transmission. Antennas operating in this range must be large in size with powerful transmitters. The provision of two-way Internet services is most often carried out in the Ku band. Its coverage area is quite wide, antennas range from 0.8 to 1.8 meters, power transmitters are compact and relatively inexpensive. With the design of new satellites with “zone beams”, the Ka-band has become more actively used. Standard antennas for it have a size of 0.75 m and provide speeds of up to 3-6 Mbit/s.

Pros and cons of satellite Internet

The advantages of satellite Internet are:

• independence from traditional providers and power supply;
• the ability to transmit data from remote and technically undeveloped regions of the planet;
• quality and high speed of signal transmission;
• ease of connection.

Disadvantages of satellite Internet include:

• the need for a permit for radio transmitting equipment;
• high cost and cumbersome equipment;
• delay on the communication channel (the satellite signal takes about 250ms to travel from the transmitting antenna to the satellite, and the same amount back);
• the ping period on a two-way channel can be 500-800ms;
• incompatibility of equipment from different manufacturers.

Satellite Internet is an indispensable option in small towns, holiday villages, remote areas where it is impossible to organize high-speed wired Internet. It is often used by oil, timber and mining companies for corporate purposes. Satellite Internet is used for organizing live broadcast from different parts of the planet.

Among individuals in cities and other populated areas, satellite Internet is not very popular, since cheaper and simple ways access to the global network.