VSAT equipment. Satellite Internet Two-way satellite Internet vsat

Satellite broadband provides high speed upstream and downstream traffic and meets any requirement for accessing Internet multimedia applications.

This service is aimed at small and medium-sized businesses and individual users (HOME and SOHO) and provided anywhere in Russia(!) VSAT network.

Two-way Internet via satellite is:

  • high-speed Internet access (outgoing traffic up to 819 kbit/s, incoming traffic up to 2 Mbit/s);
  • the ability to connect to remote offices and branches;
  • a single Internet provider for all branches and offices;
  • complete independence from terrestrial channels;
  • wide coverage area (the entire territory of Russia);
  • full compatibility with all platforms;
  • speed of deployment and scalability (expandability);
  • no last mile problem;
  • flexible tariff policy;
  • 24 hour customer support service.

Two-way satellite Internet does not require a return terrestrial channel, since the reception and transmission of data to the satellite is carried out by one set of equipment.

Bidirectional satellite access to the Internet using the LinkStar subscriber terminal provides data transmission in the direction from the Subscriber to the System Center (request channel) at a speed of 1024 Kbit/sec, and in the direction from the System Center to the Subscriber (response channel) up to 10 Mbit/sec.

The hardware implementation of the network equipment meets the requirements of the open standard for DVB-RCS systems.

Advantages of two-way Internet:

  1. High data transfer rates;
  2. Complete independence from terrestrial communication channels;
  3. Wide coverage area (almost the entire territory of the CIS, part of Eastern Europe and Asia);
  4. Compactness, simplicity and low cost of subscriber equipment;
  5. QoS system (quality of service management);
  6. Control and management of the operation of subscriber terminals is carried out from the HeliosNet system control center.

Possibility of providing additional services:

  1. High-speed satellite Internet access;
  2. Sending and receiving Email;
  3. Guaranteed file delivery;
  4. News and content transmission services;
  5. Distance education and video conferencing;
  6. Organization of corporate Intranet and Extranet networks;
  7. Organization of virtual private networks (VPN);
  8. Connection and operation of POS terminals;
  9. VoIP.

Prices and tariffs

Tariff plan "Individual"

Unlimited tariffs with a fixed monthly subscription fee.
For small businesses and individuals.

All prices include VAT.

Tariff plan "Corporate"

For corporate clients

Rate Forward/reverse channel speed Traffic Price Cost of additional traffic
Name Kbps Volume of included traffic, GB Subscription fee, rub.* 1 MB, rub.
Reserve up to 1024 / up to 256 2 7000 10
Start up to 1024 / up to 256 3 10000 5
Standard up to 2048/ up to 819 5 15000 3
Assets up to 2048/ up to 819 10 28700 2,6
Maxi up to 2048/ up to 819 25 65200 2,5

*per one subscriber terminal

All prices include VAT.

Cost of equipment, installation and connection of satellite terminals.

Cost of satellite terminal

depending on the VSAT configuration (selected antenna diameter, transceiver power, modem type, presence of telephone module, cable length):
ranges from 60 000 before 100 000 rubles (excluding VAT).

Cost of VSAT installation and connection

calculated for each Client on an individual project according to the Client’s specific tasks and requirements.
Approximately from 15 000 rubles

You can find out the cost of the satellite terminal and connection for you by sending us your application

It happens that a problem arises for a city person fixed Internet. However, a big problem confronts him the moment he finds himself in a country house. Let's talk about this, namely, about satellite access to the Network.

Let's imagine the situation

You, your family and your beloved car find yourself in the most pristine corner of our homeland. Perhaps you just came for a cultural holiday, or perhaps for permanent residence. One way or another, whether you are relaxing or downshifting, the realities of modern life are such that without the Internet you can’t go anywhere. Actually, there are a lot of options - from 3G to LTE. However, each has both its pros and cons. Thus, the speed and quality of a 3G connection depends on the channel load, and LTE simply does not work in virgin forests. But there is a way out, and we know it – VSAT satellite Internet! In our case, from AltegroSky.

How it works?

VSAT (Very Small Aperture Terminal) is a satellite communications earth station with a small antenna diameter of about 0.9 - 2.4 m. Its main purpose is to transmit various types of content and voice traffic via satellite channels. VSAT does not require maintenance; it connects directly to your terminal equipment in 10-15 minutes, acting as a wireless modem.

When you go online, your computer creates a request that goes to the satellite modem. The task of the modem, i.e. modulator/demodulator – convert one type of signal (digital) to another (radio). Here, the digital request is converted into a radio signal with a frequency of 1 MHz, and then goes to the antenna transmitter, which converts it into a high-frequency Ku/Ka-band signal and sends it to the antenna. The signal reflected from the antenna is directed to a satellite hanging above the equator at an altitude of 36,000 kilometers above the earth - this is the so-called geostationary orbit. Its highlight is that any object at this height moves around the Earth at the same speed with which the Earth itself rotates, i.e. it becomes motionless relative to the Earth. And now the question is, will you, while on a train, move relative to the ground while this very train is moving in the direction opposite to your movement? However, let's not deviate from the topic.

The satellite also has an antenna. It receives the signal, special devices amplify it, and then the satellite reflects back to Earth. From St. Petersburg in the West to Kamchatka in the East, from Tehran in the South to Norilsk in the North - the signal will be visible everywhere. And first of all, it is seen and received by the large nine-meter antenna of the Operator’s Central Communications Unit. There, the radio signal is converted back to digital and IP and sent to the Internet. Next, the request goes to the site you need, and the requested information is sent back: first via Internet channels to the Central Communications Node, then through a large antenna to a satellite above the equator and again back to Earth to your antenna.

So, we see that the request you sent to the Internet will return after traveling at least 160,000 kilometers (or even more if it goes somewhere on Earth to the USA). Hence some of the disadvantages of this technology - a long “ping”, sometimes reaching 0.7 seconds. For the average person, this means the inability to play dynamic 3D shooters in multiplayer mode, as well as delays during video calls via Skype - you will not receive a response about your interlocutor immediately, but after half a second, as during live TV news broadcasts. There are simply no other disadvantages, therefore, there remain...

Only advantages!

Firstly, VSAT Internet is available anytime, anywhere. 5 geostationary satellites are used as relay satellites in the AltegroSky network artificial satellites earth (AES). This provides 100% coverage of the territory of Russia for the provision of communication services in any region.

Secondly, VSAT Internet is quite fast - the speed reaches 8 Mbit/s. The figure is, of course, less than the theoretical 3G speed in ideal conditions, but more stable and real. ION Laboratory specialists observed these speeds with their own eyes. Yes, the ping is high, but for downloading files, for example, and for web surfing - it’s just right!

Thirdly, the VSAT Internet user will not depend on absolutely anything - the Internet will always and everywhere, however, with weather conditions, the quality of communication may deteriorate slightly. In addition, VSAT is not only high-speed Internet, but also telephone communications, wireless Wi-Fi networks, remote video surveillance of the house and territory, video conferencing.

Fourthly, VSAT Internet is two-way. Unlike one-way satellite Internet, here the signal goes not only from the Network to the subscriber, but also from the subscriber to the Network, and therefore the speed of data exchange and ease of use (no crossings with cell phones not necessary) in this case out of competition.

The kit itself costs 25,000 rubles. It’s a lot of money, but a smartphone or laptop can sometimes cost more. Plus, you can always chip in with your neighbor and buy one plate for two! For this money you get not only a dish antenna, but also one of two modems. Which one you will have depends on the area where your home is located. The SurfBeam2 modem is suitable for most subscribers, and the HN9200 is suitable for those who plan to deploy a network in the east of the Moscow region. All equipment is straight from the States! However, what worries us most is the tariff plans, because here you pay not once or twice, but as much as you use the service.

So there are two types tariff plans– unlimited “CONNECT” and “WITHOUT BORDERS” and with payment for traffic. In addition, pricing plans vary depending on the equipment. So, “WITHOUT BORDERS” are unlimited plans for the HN9200 modem, and “CONNECT” are for SurfBeam2.

Things with “unlimited” are as follows.

There are two things to understand here. The first point is that you will always have access to the Internet, but the speed depends on whether you have used up your daily amount of traffic or not. The second point is that as soon as the daily volume of traffic is used up, you switch to Soft Limit Mode, in which the speed is reduced. You can study the topic of tariff plans in more detail on the AltegroSky website

VSAT is (abbreviated as Very Small Aperture Terminal) technology, which is a terminal with a small-diameter antenna, a transceiver and a modem, controlled by a communication station from a satellite and an operator on the ground. It is the most common technology for providing satellite communications. The small size and high throughput of the technology are in demand in the fields of mining, drilling, exploration, logging, law enforcement agencies, the media, wherever stable communication is needed to solve production problems, where there are no fiber optic lines and GSM networks.

Satellite channels provide users with access to the Internet, telephony (IP telephony), video surveillance; building corporate networks and allocating channels for various tasks, including M2M.

GTNT company provides communications in the Ka and Ku bands using equipment from leading manufacturers Hughes, Gilat, Istar.

GTNT has resources on the Express satellites - AMU-1, Express AM-5, Express AM-6 in the Ka band and Yamal-401 in the Ku band. This allows us to provide our customers with the full range of necessary services (reservation of channels, construction of corporate networks using several satellites) throughout the Russian Federation.

Ka-band – operates at a frequency of 18.3-18.8 and 19.7-20.2 GHz for Satellite-Earth transmission, and between 27.5 and 31 GHz for Earth-Satellite transmission.

Today, among Russian devices, Ka-band antenna systems are located on the Express AM5 satellites - 12 transponders over the territory of the Far East and Siberia, Express AM6 - 12 transponders with a coverage area in the European part of Russia and Western Siberia, Express AMU-1.

Ka-band satellites use multi-beam technology or multiple system antennas with a narrow directional pattern, which helps to obtain a larger flow of radio links in a limited area (total diameter 200-300 km), using a smaller diameter of VSAT antennas, compared to C, Ku-bands. Complex application of narrow beams and more high range frequency helps to qualitatively increase throughput

Ku-band is a system of antennas with a wide radiation pattern that receive and transmit radio signals from the surface of the earth with a diameter of up to 3000 km within one transponder with a width of 36-72 MHz and occupies the frequencies of 11/14 GHz of geostationary satellites. Operating speeds for the Ku band are up to 8 Mbit/s in the forward channel (from the satellite to the subscriber station) and up to 3 Mbit/s in the reverse channel (from the subscriber station to the satellite).

Terminals in the Ku band usually use TDM/TDMA (time-divider multiplexing/time-dividing multiple access) technology, which makes optimal use of the resource on the satellite, in comparison with SCPC technology, in which the resource is allocated for the use of two stations, and when If these terminals do not use the resource, it remains assigned to them and is not used by other VSATs.

TDMA technology allows you to reduce the cost of services provided by the operator, since many stations operate in the network and distribute the satellite resource according to the time of use among themselves; if the satellite resource is not used by individual stations, this satellite resource is used by other stations. GTNT has extensive experience working with customers in solving communication service problems, a qualified team of engineers and managers, 24/7 technical support

, own resource and hardware and software complex for network management, availability of equipment in stock.

Easy to transport, configure and connect terminals to the network.

GPKS VSAT

VSAT FAQ (VSAT FAQ) VSAT (Very Small Aperture Terminal)

- a small satellite earth station, that is, a terminal with a small antenna. Used in satellite communications since the early 90s.

According to the international classification, VSAT includes satellite stations with antennas less than 2.5 meters. As a rule, VSAT uses a simplified procedure for obtaining frequency permits.

NEIS-Telecom Siberia employees install a 1.8 m VSAT antenna

Setting up the VSAT GILAT 1.2m antenna at the Biysk traffic police

Typical VSAT installation 1.2 m

Mobile point SB RF antenna VSAT 1.2 m

The emergence of VSAT is associated with an experimental satellite telephone network in Alaska, created in the late 60s during experiments with the ATS-1 satellite. The network consisted of 25 earth stations installed in small villages. The experiment was successful and was continued. It is worth noting that at that time the “smallest” satellite station had an antenna with a diameter of 9 m and cost about 500 thousand dollars.

Further development and reduction in cost of VSAT systems led to the creation by Equatorial of cost-effective satellite communication systems based on VSAT, which gave impetus to the emergence of new companies offering VSAT equipment. The market began to develop rapidly, and competition on it increased sharply. Finally, the whales of the telecommunications business paid attention to the market and, without further ado, began to buy companies that were successfully developing in the market. American telecommunications giant AT&T acquired Tridom. Ku-band VSAT pioneer Linkabit has merged with M/A-COM, which has become a leading supplier of VSAT equipment. Hughes Communications subsequently acquired the division from M/A-COM.

This is how Hughes Network Systems was born. Scientific-Atlanta, a manufacturer of large satellite communications stations, entered the VSAT equipment business with the acquisition of Adcom. GTE Spacenet initially provided VSAT services using equipment from other suppliers. Equatorial merged with Contel in 1987, which simultaneously acquired the VSAT division of Comsat. And in 1991, GTE Sapacenet acquired Contel. In 1987, the company's founders created a new company - Gilat Satellite Networks Ltd. for VSAT production. Thus, a main pool of players in the VSAT production market was formed, which continues to this day.

Compound

VSAT consists of two main parts, ODU (OutDoorUnit) - an external unit, that is, an antenna and a transceiver, usually 1-2 W and IDU (InDoorUnit) - an internal unit or satellite modem.

An outdoor unit (ODU) is an outdoor unit installed at the antenna focal point that transmits modulated radio signals to and from the hub via satellite. The ODU consists of a solid-state amplifier (SSPB, BUC), a low-noise block (LNB) downconverter, and a polarization selector (OMT). BUC and LNB are connected to separate OMT ports. This configuration allows the reception of a signal with a certain type of polarization and the transmission of a signal with a different type of polarization, usually orthogonal. The interconnect cable has F-type connectors. Factory VSAT antennas are equipped with a feed and OMT.

The internal unit (IDU) is a small tabletop device that converts information passing between analog communications on the satellite and local devices such as telephones, computer networks, PC, TV, etc. In addition to the main conversion programs, IDUs may also contain additional functions, for example, such as security, network acceleration and other properties.

Work principles

A VSAT-based satellite communication network includes three main elements: a central earth station (if necessary), a relay satellite and VSAT user terminals.

The central earth station in a satellite communications network performs the functions of a central node and provides control of the operation of the entire network, redistribution of its resources, fault detection, tariffing of network services and interfacing with terrestrial communication lines. Typically, the central station is installed in the network node that receives the most traffic. This could be, for example, main office or a company’s computer center in corporate networks, or a large city in a regional network.

VSAT subscriber station A VSAT subscriber terminal usually includes an antenna-feeder device, an external external RF unit and an internal unit (modem). The external unit is a small transceiver or receiver. The indoor unit provides pairing satellite channel with the user's terminal equipment (computer, LAN server, telephone, fax PBX, etc.).

VSAT network relay satellites are built on the basis of geostationary relay satellites. This makes it possible to simplify the design of user terminals as much as possible and equip them with simple fixed antennas without a satellite tracking system. The satellite receives the signal from the earth station, amplifies it and sends it back to Earth. The most important characteristics satellite are the power of onboard transmitters and the number of radio frequency channels (trunks or transponders) on it. To ensure operation through small subscriber stations such as VSAT, transmitters with an output power of about 40 W are required. Modern VSATs usually operate in the Ku frequency range of 11/14 GHz (one frequency value for reception, another for transmission), there are also systems using the C range of 4/6 GHz, and the Ka range of 18/30 GHz is also now being mastered.

The transmitting and receiving equipment and the antenna-feeder device are usually built on the basis of standard equipment available on the market. The cost is determined by the size of the antenna and the power of the transmitter, which significantly depend on technical characteristics the relay satellite used. To ensure communication reliability, the equipment usually has 100% redundancy.

Channel-forming equipment ensures the formation of satellite radio channels and their connection with terrestrial communication lines. Each of the suppliers of satellite communication systems uses its own original solutions for this part of the central network, which often excludes the possibility of using equipment and subscriber stations from other companies to build a network. Typically, this subsystem is built on a modular basis, which makes it possible to easily add new blocks to increase its throughput as traffic and the number of subscriber stations in the network grow.

Modern VSAT ensures that the VSAT owner receives information at speeds of up to 4 Mbit/s (in multicast mode up to 30 Mbit/s) and transmits information up to 1..2 Mbit/s.

Modern VSATs have one or more Ethernet ports and built-in router functionality. Some models, through expansion, can be equipped with 1-4 telephone ports.

Current situation

As of 2007, there are more than a million VSATs in the world, of which more than 500,000 are in the United States alone. In Russia at the end of 2006 there were about 5,000 VSATs, but the pace of VSAT deployment is very high and as of November 2007, 17,675 stations were installed.

A significant increase in the number of VSATs in 2007 occurred due to the implementation of Federal target programs - Universal Communication Service (public Internet access points) and Education (Internet in Russian schools).

Consumers of the Russian VSAT market can be divided into four segments:

  1. Government agencies
  2. Large corporations with an extensive network of branches and representative offices.
  3. Medium and small regional businesses.
  4. Private users (satellite Internet).

Active users of VSAT are marine vessels, which use stabilized antennas that allow satellite tracking despite changes in the vessel's course. Currently, almost all passenger cruise ships have a marine VSAT installation on board. Typically the main problem for marine users is right choice VSAT operator with unlimited coverage worldwide. And also automatic transition from one satellite to another while sailing.

NEIS-Telecom Siberia employee adjusts mobile VSAT antenna

Major VSAT manufacturers in the world:

Advanetch Wireless (Canada);

Codan (Australia);

Hughes Network System (USA) - HughesNet (DirecWay), HX;

Gilat (Israel) – SkyEdge;

ViaSat (USA);

iDirect(USA);

NDSatCom (Germany);

Istar (Russia).

The typical cost of an enterprise-class VSAT for the end client is about 2500..3000 US dollars. For mass access to satellite Internet services, VSAT kits are offered, usually with limited network functionality, priced at 14-30 thousand rubles.

Deploying VSAT and connecting it to the network takes from 1-2 hours for simple standard installations to 4-6 or more for “problematic” ones (with searching for satellite visibility, installing non-standard supports, etc.). If special preparation of the site for the antenna support is required (soil drilling, concreting, welding, etc.), then installation time can increase significantly.

The main use of VSAT is organizing broadband Internet access, telephone communications, data transmission for corporate networks, video conferencing, distance learning, reservation of terrestrial communication channels.

It is used mainly outside large cities, where there are no reliable and high-speed terrestrial communication channels.

(c) This material uses an article from Wikipedia - the free encyclopedia

To gain access to satellite Ka-Internet technology, high-speed satellite communication channels are used, broadcasting in the so-called Ka-band. Communication satellites are used for this latest generation with the abbreviation HTS, which stands for High-Throughput Satellite, which has an ultra-high ability to transmit and receive data. When creating them, the latest achievements were fully used - antennas, multi-beam direction, as well as ultra-efficient signal processing techniques. These satellites are used to gain access to the Internet using the equipment we provide. Little interference, excellent energy of radio lines, very high speed, plus antennas with small dimensions - our company’s clients enjoy all these advantages when paired with satellite Ka-Internet.

    The main differences between Ka and Ku-band

The Ka-band is a range whose frequency is higher when compared to the Ku-band. If we talk about satellite communications using small stations located on the ground in the Ka-band, sections of the spectrum operate at 29-31 GHz to transmit information to the satellite and 10-20 GHz to receive it. In the Ku-band, these data are 13-14 GHz for transmission and 11-12 GHz for reception. As for the subscriber, the difference for him is that he will need an antenna with a smaller diameter to receive the signal. The receiving speed will be 45 Mbit/s when receiving, as well as 10 Mbit/s when sending data.

    What is the difference Satellite Internet double-sided or single-sided type?

During operation with one-way access, one channel transmits data received from the satellite to the subscriber, while data going to the satellite passes through another channel that uses networks on the ground (often mobile operators). When it comes to two-way Internet communication, then both channels go through the satellite.

    What is the data transfer speed when using satellite Internet? Can she change?

The Internet using satellite technology is able to provide data reception at speeds of up to 45 Mbit/s, as well as up to 10 Mbit/s in the opposite direction. More specifically, we can talk about Internet speed depending on the connected tariff, as well as the capabilities of receiving radio signals.

    Is it possible to connect to the Internet in several houses?

Yes, you can.

    How does the weather affect Internet speed?

The weather in the area where the equipment is installed can indeed affect the speed of communications received. Only intense rain can weaken the received signal as much as possible. However, the population of our country rarely experiences such intense rains.

    How much energy does the equipment consume?

The power of the kit required for connection and further work on the Internet installed at the subscriber does not exceed 60 W.

    Is it worth buying your own? network filter, and also a stabilizer?

To protect equipment from possible network interference or voltage surges that periodically occur in power networks, it is possible to additionally use power supply devices for protection.

    Like radiation from satellite dish can affect human health?

Satellite Internet is classified as a “green” technology, that is, one that does not affect human health if the rules of its operation are strictly followed. In addition, the satellite receiver has low power, approximately the same as that of mobile phone. But unlike a cell phone, it is not applied to the head; the transmitter and antenna are placed outside the house, and the radiation is directed upward. In addition, do not forget that all the equipment necessary for receiving satellite Internet has all the necessary certificates.

    How can I pay for satellite internet?

The easiest way to pay for satellite internet is with your own by bank card, just from personal account, or using the Sberbank Online application.

    How to choose the diameter for the antenna? How much does diameter affect the overall price of equipment?

Of course, the diameter of the antenna has a direct relationship to the price of the equipment. Its choice, as well as the choice of antenna size, will depend on the visibility conditions of the satellite, as well as the area where the equipment is installed.

If the signal direction angle is too small or the place where the equipment will be installed is located on the border of the satellite service area, an antenna with a larger diameter may be needed. To check satellite visibility parameters, you can always use the interactive map. In addition, when choosing an antenna, it is worth considering that additional transmitter power, as well as an increased antenna diameter, will never be superfluous.

    How to determine the elevation angle for the satellite where the equipment is located?

The elevation angle for the desired satellite can always be found using:

    SatFinder smartphone application (Hughes and Gilat equipment);

    Eutelsat satellite finder smartphone application (Gilat equipment);

    SMWlink smartphone application (Hughes and Gilat equipment);

    Computer software SMWLink.

    What is the maximum wire length from the transmitter to the modem? Is a regular TV cable suitable for this purpose?

The length of the wire connecting the transmitter to the modem should be no more than 50 m. Typically, an RG 6 coaxial cable with a thickness of 6 mm and a resistance of 75 Ohms is used for these purposes. If the television cable has the same parameters, you can use it, but it must additionally be protected for outdoor installation. Any set of our equipment contains a cable for connecting the transmitter to the modem of at least 20 m.

    Will the equipment cause interference when watching TV or mobile phones?

No. The fact is that this equipment operates in a different frequency range than mobile connection and TV.

    Which brand of equipment is better - Hughes or Gilat?

Both Hughes and Gilat are the world's leading manufacturers of satellite communications equipment. That is why this equipment is used for satellite Internet. At the same time, the technology is similar in its capabilities in many factors. When working with the Express-AMU1 satellite, only Gilat equipment can be used.

    How quickly can the equipment be installed?

Typically, equipment installation only takes a couple of hours. In general, the following factors influence the installation time:

    complicated access to the point where the equipment will be installed;

    unfavorable weather;

    elimination of extraneous factors that interfere with pointing the antenna at the satellite.

    What are the requirements for a PC?

The equipment is connected via the satellite's Ethernet interface. If you plan to connect only one PC, it must be equipped with network card equipped with an Ethernet interface. For maximum comfort when working on your computer, you can install several browsers at once, for example, Chrome, Opera, Mozilla Firefox or Internet Explorer. If there is a need to additionally use other gadgets (laptops, tablets, smartphones, etc.), then an external router is additionally connected to the terminal from the satellite, which distributes the Internet to these devices. Special requirements for OS, volume random access memory and processor power is not required.

    Do I need certain programs for satellite Internet to work?

No, to access satellite internet, installation special programs need not.

    What to do if you need to set up Wi-Fi distribution?

The easiest way to deploy a Wi-Fi network is to use a router that connects to a VSAT modem using a cable. The router will need to be configured as an access point. A Wi-Fi network for the home using a router is the best solution, as it allows you to use satellite Internet simultaneously from different devices.

    Is it possible to move the equipment to another location in the future?

Yes, such a possibility exists.

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