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Comparison of satellite and terrestrial Internet. Satellite Internet – technology of the future or an expensive alternative to traditional network connection methods? Exotic two-way satellite communications

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 the local network.

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, and 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.

Everywhere Availability global network- an important condition for doing business and providing users modern communications. Accessing the World Wide Web from a satellite helps where other means are ineffective or unavailable.

This is the age of the Internet and a wide variety of mobile telecommunications, and residents of megacities have high-speed unlimited communication via ADSL or home networks seems like a given. But are all these benefits of civilization available to many users located far from large cities? Indeed, even in the latter, most providers benefit from covering only apartment buildings with home networks. In this regard, it is much more difficult for residents of the “private sector”, and not only for them: there are areas where, for one reason or another, providers are unlikely to come in the near future. Of course, it is possible to access the Internet via mobile operator via GPRS, but it is very expensive.

However, there is a worthy alternative to a low-speed and expensive “telephone” connection - satellite Internet. Until recently this channel was little adopted by the mass user due to the established stereotype that “space communications” were beyond the means of many. Today, this method of accessing the Internet has become more accessible.

The higher the transmitter, the greater the coverage

The numbers on the map indicate the recommended diameter of the satellite dish. Satellite Internet is just one of the special cases of communication via a radio channel using artificial Earth satellites. These devices are not independent sources or final receivers of the signal - they are only repeaters that make it possible to bypass the limitation on the range of terrestrial radio communications caused by the curvature of the surface of our planet. Thus, satellite Internet, despite its “space” name, is only a method of delivering a signal from a terrestrial provider to a terrestrial client, the so-called “last mile” of connection to the World Wide Web.

There is nothing fantastic about this method, but it has certain features that cannot be ignored. In particular, due to the fact that the repeater is raised into geostationary orbit, the signal coverage area automatically increases. Thus, the coverage area of this network segment is no longer limited to one apartment building, but may include several areas and regions.

If artificial satellites were cheap to manufacture and maintain, and their frequency capacities were unlimited, satellite Internet would likely be available to anyone. But in reality we have to face a number of serious technological limitations. And the main thing is that the satellite’s capabilities in terms of the amount of information transmitted per unit of time are limited. After all, if each subscriber had to be allocated two separate channels (for receiving and transmitting data), then such equipment simply would not fit on the satellite, and the number possible subscribers it would be extremely small.

To somehow optimize costs, providers take advantage of the peculiarities of Internet traffic.

Asymmetrical - only half satellite

Asymmetric satellite Internet According to statistics, on average, incoming traffic exceeds outgoing traffic. When designing networks, they start from this, ensuring different speed incoming and outgoing channels. Let's take an ADSL channel as an example (this abbreviation stands for “asymmetric digital line”). Incoming traffic is several times faster than outgoing traffic. At the same time, users feel quite comfortable, and the provider saves on frequency resources. A similar technology is used in organizing satellite communications, only here operators take advantage of the opportunity not just to reduce the speed of the reverse channel, but complete removal it from the satellite, that is, transferring this function into the hands of terrestrial providers. This scheme is called an asymmetric channel.

Most often it works as a return channel phone line(stationary or mobile communications), but this role can also be played by a provider operating via a local network or wireless access.

So, although it is argued that satellite Internet is aimed at regions with poorly developed infrastructure, this cannot be understood as a complete absence of telecommunications as such. Rather, this refers to the lack of decent terrestrial providers with acceptable tariffs. This option also allows you to significantly increase access speed if, for example, access to the Internet is possible only through a telephone modem or a very slow GPRS channel.

At the same time, there is also two-way satellite Internet (see below “The Exotics of Two-Way Satellite Communications”), although it cannot yet be called a mass phenomenon. This option is intended primarily for those who need access to the World Wide Web in the complete absence of other communications from anywhere in the world. This solution really doesn't depend on existing networks, although it still requires electricity to operate (which, however, can be obtained from diesel generator). But due to the high cost of such a channel, it is used mainly for emergency work purposes.

Therefore, most often, satellite Internet is understood as precisely the asymmetric “last mile”, combining two technologies - a satellite receiver for reception and the services of a terrestrial provider (for example, mobile operator) to send requests and data.

Options for organizing a reverse channel

There are many ways to organize a back channel. Of course, the choice of technology should primarily be determined by the capabilities available in a particular geographic location. This can be not only a landline or mobile telephone line, but also some kind of radio access option. A local provider with “ home network"(for some reason it does not suit you as the only connection to the World Wide Web).

The software supplied by the satellite Internet operator is responsible for the correct distribution of data (where to send the request and where to read the information from). Without it, proper operation of the asymmetric channel is impossible.

At the same time, this is not the first time that such software has been used to organize access to the Network.

So, in St. Petersburg several years ago there was a provider that provided Internet access through a computer’s TV tuner. Subscribers sent requests for files to download via a modem connection (Dial-Up), they were processed by the server, and the downloaded data was sent to users through one of television channels, which provided virtually unlimited incoming traffic and high download speeds.

Asymmetric Channel Focuses

Unfortunately, even with an asymmetric scheme for organizing Internet access, the number of frequencies for transmitting data from a satellite is limited. This means that it is impossible to provide each subscriber with a separate channel not only for receiving and transmitting, but also simply for receiving information. Moreover, any other channel division, for example by time, is also not effective.

Therefore, the satellite Internet standard implies broadcast data transmission for all users, which means that the information received by the receiver contains not only the pages you requested, but also your neighbor’s mail, parts of the movie that your fellow countryman is downloading, and even ICQ messages from a stranger from another region.

Satellite receiver deciphers the signal coming from the satellite into the requested Internet data. The receiver selects the necessary data from this mass using the MAC address of the satellite terminal.

Of course, satellite Internet providers resort to various tricks to prevent users from reading information that is not intended for them - for example, channels are encrypted using various algorithms. But the very fact that confidential data can be accessed attracts a lot of scammers and simply curious people. The entertainment that consists of reading other people’s data is called “satellite fishing.”

Necessary equipment

The most popular standards for organizing satellite Internet today are DVB-S and DVB-S2 (the second is an improved version of the first).

To connect to the Network via satellite using the common asymmetric scheme, you will need a satellite dish of the recommended diameter, a signal converter, a receiver (a “space” Internet terminal), the necessary wires and a contract with the satellite operator.

Of course, it is also necessary alternative connection to the “terrestrial” Network and software for managing data packets. Let's look at each of these points in more detail.

The satellite dish provides both reception and transmission of the return signal. The larger its diameter, the more reliable connection Satellite antennas They are no different from devices for receiving digital satellite television, but they differ significantly both in price and in size with transceiver antennas. Typically, a satellite Internet operator, as in the case of television, recommends a certain minimum diameter of the “dish,” depending on the geographic location of the subscriber (and therefore the strength of the satellite signal in ideal conditions). For this information, please visit the operator's website. Theoretically, you can install a satellite dish yourself.

Converters may differ from each other in a number of parameters (for example, in the polarization with which they work), so when choosing, it is recommended to pay attention to the lists of supported hardware on the provider’s website.

The receiver in PCI card format is inserted inside the system unit and provides the user with both incoming traffic from the satellite and satellite television Satellite terminal is an interface board that can be inserted into system unit computer (for example, via a PCI interface) or located in an external case and connected to a PC via a USB connector.

Advice. You should not first buy equipment and then look for a satellite Internet service provider.

If "plates" are more or less universal, then the access terminals offered various operators, very often turn out to be incompatible.

Your internet service provider can usually provide you with both the hardware and software, in which it is already specified own settings(encoding, proxy servers, etc.).

Exotic two-way satellite communications

Symmetrical channel Obviously, to organize a two-way channel, you will need not only receiving, but also transmitting equipment, that is, a more expensive transceiver antenna, a transmitting unit (in addition to the receiving one), as well as a special terminal. In addition to the high cost of all this equipment and the rental of satellite capacity, two-way satellite Internet has other disadvantages.

First, since data from you is sent over the air, the transmitting equipment must be properly registered with government agencies, which can take a long time, but providers usually take care of this problem.

Secondly, two-way satellite Internet is a very specific method of communication.

Considering the time it takes for a radio signal to travel through the satellite to the provider and back, responses to sent requests may not be returned in a few milliseconds, as we are used to with terrestrial providers, but in seconds.

A certain delay is also inherent in an “asymmetrical” satellite link, but in this case the signal travels only once along the “long” path (via the satellite).

When organizing a symmetrical line, the signal goes through the satellite twice (a request to the provider and a response to the user), that is, the waiting time doubles and becomes noticeable. This means that you shouldn’t even think about any online computer games that require fast response.

Price issue

Personal Area satellite Internet user allows you to monitor traffic and manage tariff plan Traditionally, satellite Internet is characterized by high connection costs, because the subscriber also has to pay for expensive equipment. But with the popularization of the service, more and more accessible terminals appear and satellite dishes, which allows us to hope for lower prices in the future. Today, the cost of symmetric access is about 40 thousand rubles for connection and configuration and from 1,600 rubles per month for traffic or as a subscription fee.

The situation with asymmetric access is better: the cost of receiving equipment is about 8,600 rubles. Monthly traffic costs or subscription fee range from 600 rubles for connections without a lower guaranteed speed threshold (CIR) and from 3000 rubles - with such a threshold.

Conclusion

Satellite Internet may be the only chance to connect to the World Wide Web where there is no stable cellular or cable service telephone communication. And if the price of the issue does not stop you, it makes sense to pay attention to the symmetrical access method. But it is worth taking into account the disadvantages of “space” technologies. Unfortunately, such Internet access, oddly enough, is not that reliable. Considering that the signal travels thousands of kilometers to the satellite, any noticeable cloud can become an interference. You can combat this by using a larger satellite dish, which will be more expensive. Another disadvantage of such a connection is the need for specialist assistance when installing and configuring equipment, which also requires money.

There are situations when there is no connection possibility wired Internet, and not 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 “ 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 a base station) to subscribers located in the satellite coverage area (this is a very large area that usually includes several countries or the entire European continent).

The coverage area is the main advantage of this technology. For comparison, one cellular operator base station tower 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.

Information transmitted through satellite channels connections are 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 (transmission 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 MAC address receiving card (receiver) cards.

Also, to organize a more reliable connection, they are used special programs(accelerators), which, in addition to encrypting traffic, also compress it, which saves the satellite’s frequency resource and helps increase data transmission 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, the better the 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 watch digital satellite television and 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 the card with 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 a 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. The main function of the software is to configure the connection and organize direct asymmetric access to the Internet, 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 is now rapidly developing, 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 free access to open satellite television channels.

Satellite Internet arouses interest among users primarily due to its universal availability. After all, accessing the Internet from a satellite helps where other options for connecting to the Internet are ineffective or not available at all.

In the age of the ubiquitous Internet, for residents of large cities, its absence seems like a misunderstanding, but what options do residents of private homes and in places remote from large populated areas have? Most providers benefit from residential network coverage of only apartment buildings. It is much more difficult for residents of the “private sector” to organize an Internet channel, not to mention remote areas where providers are unlikely to come in the near future. Of course, it is possible to access the Internet through a mobile operator, but given the current volume of traffic it is very expensive.

A worthy alternative to low-speed and expensive mobile internet - Satellite Internet. More recently, only a few used it, but now this method of accessing the Internet has become much more accessible.

Satellite Internet coverage

Satellite Internet- this is communication via a radio channel with the participation of artificial Earth satellites, which are not independent sources or final receivers of the signal, since they are only repeaters that make it possible to bypass the limitation of the distance of terrestrial radio communication caused by the uneven terrain of our planet. Thus, satellite Internet is only a way to deliver a signal from a terrestrial provider to a terrestrial client.

The peculiarity of satellite Internet is that the repeater is in orbit, automatically increasing the signal coverage area to several areas and regions. Taking into account also their cost, one can justify the reason why this type communication is not available to anyone. Another one feature of satellite internet is to limit the volume transmitted information. After all, if each subscriber had to be allocated two separate channels (for receiving and transmitting data), then such equipment simply would not fit on the satellite, and the number of possible subscribers would be extremely small. To somehow optimize costs, providers take advantage of the peculiarities of Internet traffic.

Asymmetrical - satellite Internet by 50%

If we talk about statistics, on average, incoming traffic exceeds outgoing traffic, and when designing networks, they take into account precisely this factor, providing different speeds for incoming and outgoing channels. Let’s take for example an ADSL channel (by the way, this abbreviation stands for “asymmetric digital line”), in which incoming traffic is several times faster than outgoing traffic. At the same time, users feel quite comfortable, and the provider saves on frequency resources. A similar technology is used when organizing satellite communications, only here operators take advantage of the opportunity not just to reduce the speed of the return channel, but to completely remove it from the satellite, that is, transfer this function into the hands of terrestrial providers. This scheme is called asymmetric channel. As a rule, a telephone line (landline or mobile connection) is used as a return channel, but a provider operating through a local network or wireless access can also play this role.

There is a stereotype that satellite Internet is aimed at regions with poorly developed infrastructure; this cannot be understood as a complete absence of telecommunications as such. Rather, this refers to the lack of decent terrestrial providers with acceptable tariffs. This option also allows you to significantly increase access speed if, for example, access to the Internet is possible only through a telephone modem or a slow GPRS channel of the mobile Internet.

At the same time, there is also two-way satellite Internet, but the phenomenon is far from widespread. This option is intended primarily for those who need access to the Internet in the absence of an alternative from anywhere in the world. This solution is truly independent of existing networks, although it still requires electricity to operate. But due to the high cost of such a channel, it is used mainly for emergency work purposes, so most often under satellite Internet This means an asymmetric channel that combines the following:

satellite receiver for reception
services of a terrestrial provider (for example, a mobile operator) to send requests and data.

Options for organizing a reverse channel

There are many ways to organize a back channel. Of course, the choice of technology should primarily be determined by the capabilities available in a particular geographic location. This can be not only a landline or mobile telephone line, but also some kind of radio access option. A local provider with a “home network” (for some reason, which does not suit you as your only connection to the World Wide Web) is not excluded.

Features of an asymmetric channel

Unfortunately, even with asymmetric scheme for organizing Internet access the number of frequencies for transmitting data from the satellite is limited. This means that it is impossible to provide each subscriber with a separate channel not only for receiving/transmitting, but also simply for receiving information. Moreover, any other channel division, for example by time, is also not effective. Therefore, the satellite Internet standard implies broadcast data transmission for all users, which means that the information received by the receiver contains not only the pages you requested, but also your neighbor’s mail, parts of your relative’s downloaded movie in another city, and even messages from some stranger’s messenger .

The satellite receiver decrypts the incoming signal from the satellite into the requested Internet data

The receiver selects the necessary data from this mass using the MAC address of the satellite terminal. Of course, satellite Internet providers resort to various tricks to prevent users from reading information that is not intended for them - for example, channels are encrypted using various algorithms. But the very fact that confidential data can be accessed attracts a lot of scammers and simply curious people. The entertainment that consists of reading other people’s data is called “satellite fishing.”

Equipment for satellite Internet

The most popular standards for organizing satellite Internet today are DVB-S and DVB-S2 (the second is an improved version of the first). To connect to the Network via satellite using a common asymmetric scheme, you will need:

satellite dish of recommended diameter
signal converter
receiver (satellite Internet terminal)
necessary cables
contract with a satellite operator.

As I said earlier, you also need an alternative connection to the “terrestrial” Network and software to manage data packets.

Satellite antennas are no different from devices for receiving digital satellite television, but they differ significantly in both price and size from transceiver antennas. Usually the operator satellite Internet, as in the case of satellite television, recommends a certain minimum diameter of the “dish”, depending on the geographic location of the subscriber (and therefore the strength of the satellite signal under ideal conditions). For accurate information, please visit the operator's website. Theoretically, you can install a satellite dish yourself. However, most often it is recommended to contact specialists who will direct it clearly to a satellite located in geostationary orbit.

The receiver in PCI card format is inserted inside the system unit and provides the user with both incoming traffic from the satellite and satellite television.

A satellite terminal is an interface board that can be inserted into the computer system unit (for example, via a PCI interface) or located in an external case and connected to a PC via a USB port.

Attention! You should not first buy equipment and then look for a satellite Internet service provider. If “dishes” are more or less universal, then access terminals offered by different operators very often turn out to be incompatible. An Internet service provider can usually supply you with both hardware and software that already has its own settings (encoding, proxies, etc.) preset.

Two-way satellite communication channel

Symmetrical channel

Obviously, to organize a two-way channel, you will need not only receiving, but also transmitting equipment, that is, a more expensive transceiver antenna, a transmitting unit (in addition to the receiving one), as well as a special terminal. In addition to the high cost of all this equipment and the rental of satellite capacity, two-way satellite Internet has other disadvantages:

Since data from you is sent over the air, the transmitting equipment must be properly registered with government agencies, which can take a long time, but most often the providers take care of this problem.
Two-way satellite Internet is a very specific method of communication. Considering the time it takes for a radio signal to travel through the satellite to the provider and back, responses to sent requests may not be returned in a few milliseconds, as we are used to with terrestrial providers, but in seconds. A certain delay is also inherent in an “asymmetrical” satellite link, but in this case the signal travels only once along the “long” path (via the satellite). When organizing a symmetrical line, the signal goes through the satellite twice (a request to the provider and a response to the user), that is, the waiting time doubles and becomes noticeable. This means that you shouldn’t even think about any online computer games that require fast response.

Is satellite internet expensive?

Traditionally, satellite Internet is characterized by high connection costs, because the subscriber also has to pay for expensive equipment. But with the popularization of the service, more and more accessible terminals and satellite dishes are appearing, which allows us to hope for a reduction in prices in the near future. Today's cost symmetrical access is about 2-3 tens of thousands of rubles for connection and setup, as well as from 1000 rubles per month for traffic or as a subscription fee.

WITH asymmetrical access the situation is better: the cost of receiving equipment is about 5000-7000 rubles. Monthly traffic costs or subscription fees average from 500 rubles for connections without a lower guaranteed speed threshold (CIR) and from 2,000 rubles for connections with such a threshold.

Do you need satellite Internet?

Satellite Internet may be the only chance to connect to the Internet where there is no reliable cellular or cable phone service. And if the price of the issue does not stop you, it makes sense to pay attention to the symmetrical access method. But it is worth taking into account the disadvantages of satellite Internet communication types. Unfortunately, such Internet access, oddly enough, is not that reliable. Considering that the signal travels thousands of kilometers to the satellite, any noticeable cloud can become an interference. You can combat this by using a larger satellite dish, which will be more expensive. Another disadvantage of such a connection is the need for specialist assistance when installing and configuring equipment, which also requires money.

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