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Satellite Internet vsat. Two-way satellite Internet VSAT

To gain access to satellite Ka-Internet technology, high-speed channels are used satellite communications, broadcasting in the so-called Ka-band. For this purpose, the latest generation communication satellites with the abbreviation HTS are used, which stands for High-Throughput Satellite, which have 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 purchasing your own surge protector and 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. Usually used for these purposes coaxial cable RG 6 is 6 mm thick and has a resistance of 75 Ohms. If tv cable has the same parameters, it can be used, but it must additionally be protected for external 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.

It happens that a city person faces the problem of landline 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. Further request is coming 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 artificial earth satellites (AES) are used as relay satellites in the AltegroSky network. 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, of course, is less than the theoretical 3G speed under ideal conditions, but it is 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 of 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

Satellite Internet is a technology for providing Internet access through an artificial Earth satellite (AES), which acts as a relay between the earth station (TSSSS) and the subscriber's transceiver equipment. Modern technologies allow the use of subscriber stations with small-diameter antennas, such stations have an abbreviation consisting of English letters VSAT, which in Russian is read as “visat”.

More recently, Satellite Internet technology included two connection methods: one-way satellite Internet and two-way satellite Internet. Currently, one-way satellite Internet is obsolete and is practically not used anymore. Further, Satellite Internet means two-way satellite Internet.

Communication satellites, located at a considerable distance from the earth, can provide radio signal coverage to very large areas. For example, one satellite can cover all of Europe and the central part of Russia at once, or just 2-3 satellites can cover the territory of all of Russia. Thus, where for thousands of kilometers around there is not a single “wired” Internet provider and there is not a single provider cellular communications, satellite communication technology can easily provide stable and high-speed Internet access!

Advantages of Satellite Internet

Let's list the main advantages of Satellite Internet compared to other wireless Internet technologies:

  • Access possible anywhere. The main and main advantage of two-way satellite Internet (as opposed to one-way) is the ability to access the Internet where there are no “terrestrial” Internet providers. All you need for this: a place to install the antenna, direct visibility to the satellite and the availability of power.
  • Simplicity and versatility of the modem. Once installed and configured, the equipment does not require any maintenance from the user to maintain its functionality. At the output of any satellite modem, the user receives a standard computer network port (Ethernet), to which you can connect a PC, WiFi router, server, M2M controller, video surveillance recorder or any other network device;
  • High-speed Internet. A satellite link can provide speeds of up to 40 Mbit/s at the reception and before 12 Mbit/s for transmission from the subscriber! Unlike connection technologies via 3 channelsGor4G, the speed in which may vary depending on the network load, satellite channel The connection is stable and is guaranteed to provide speed in accordance with your tariff plan (TP) 1.
VSAT concept

VSAT(Very Small Aperture Terminal) literally translates as “terminal with a very small aperture” (antennas).

These are satellite ground stations, specifications which comply with the requirements of ICE-P Recommendations S.725-S.729.

Among the main requirements:

  • VSAT stations belong to the Fixed Satellite Service (FSS) and must comply with the requirements of the Radio Regulations;
  • for operation, the frequency ranges allocated for the FSS are used (14 and 6 GHz on the uplink and 11-12 and 4 GHz on the downlink);
  • the diameter of the antennas is in the range of 0.9-3.5 m;
  • information transmission speed from the station - from 1.2 to 2.048 Mbit/s;
  • stations are installed directly at the user’s location, and the density of their placement in a limited area can be very high;
  • stations can operate autonomously, control and management of the work of stations in the network is carried out centrally;
  • stations can be used for data transmission and telephony in digital form and in operating mode: receive only (simplex) or receive/transmit (duplex);
  • The stations use a low-power radio transmitter (from several units to tens of watts) with mandatory limitation of the emitted power for the safety of users.

VSAT networks 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. To ensure operation through small-sized subscriber stations such as VSAT, satellite transmitters must have an output power of about 40 W.

Since VSAT stations belong to the Fixed Satellite Service, it is possible to build on their basis satellite networks to provide the services provided by this service, i.e. data transmission, voice transmission, image transmission, video conferencing, Internet access; multimedia.

VSAT - small satellite ground station

VSAT(English) Very Small Aperture Terminal) - a small satellite ground station, 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.

Story

The emergence of VSAT is associated with an experimental satellite network telephone communication 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 extended. 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 teamed up with M/A-COM to become a leading supplier of VSAT equipment. Hughes Communications subsequently acquired a stake in 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 by acquiring 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 receiver, usually 1-2 W and IDU (InDoorUnit) - indoor 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 (SSPA, 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.

An 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.

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 POS terminals;
  9. VoIP.

Prices and tariffs

Tariff plan"Individual"

Unlimited tariffs with 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

VSAT(Very Small Aperture Terminal) literally translates as “terminal with a very small aperture” (antennas).

These are satellite communication ground stations, the technical characteristics of which comply with the requirements of MCE-P Recommendations S.725-S.729.

Among the main requirements:

  • VSAT stations belong to the Fixed Satellite Service (FSS) and must comply with the requirements of the Radio Regulations;
  • for operation, the frequency ranges allocated for the FSS are used (14 and 6 GHz on the uplink and 11-12 and 4 GHz on the downlink);
  • the diameter of the antennas is in the range of 0.9-3.5 m;
  • information transmission speed from the station - from 1.2 to 2.048 Mbit/s;
  • stations are installed directly at the user’s location, and the density of their placement in a limited area can be very high;
  • stations can operate autonomously, control and management of the work of stations in the network is carried out centrally;
  • stations can be used to transmit data and telephony in digital form and in receive-only (simplex) or receive/transmit (duplex) modes;
  • The stations use a low-power radio transmitter (from several units to tens of watts) with mandatory limitation of the emitted power for the safety of users.

VSAT networks 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. To ensure operation through small-sized subscriber stations such as VSAT, satellite transmitters must have an output power of about 40 W.

Since VSAT stations belong to the Fixed Satellite Service, satellite networks can be built on their basis to provide the services provided by this service, i.e. data transmission, voice transmission, image transmission, video conferencing, Internet access; multimedia.

Around the world, the number of installed VSAT stations is measured in hundreds of thousands, and the number of subscribers served by them is measured in hundreds of millions.

It should also be noted that along with such advantages of this technology as relative cheapness and speed of installation, the use of a VSAT station requires permission from the relevant authorities. However, recently a simplified registration procedure for VSAT subscriber terminals has been introduced in Russia.

Types of VSAT terminals

There are several types of VSAT earth stations. They can be roughly divided into three generations. The emergence of each new generation of VSAT became possible with the development of new technologies, the creation of powerful communication satellites and the development of new frequency ranges.

The first generation VSATs operated in the C-band and were used only in broadcast-type networks, i.e. subscriber terminals could only receive data streams, and they did not provide for a transmission mode. Networks of this type are still widely used for the distribution of financial and business information, stock market reports, transmission of newspaper strips, and in asymmetric Internet access systems.

The second generation of VSAT ground stations is characterized by the fact that they can support two-way (duplex) communications. These terminals are used by banking and financial organizations in data exchange networks, in retail and wholesale trade networks, industrial enterprises for communication with branches and suppliers, as well as for organizing high-speed two-way Internet access and telecom operators for dedicated main channels between remote nodes with a large volume of data exchange. Most of them operate in the Ku-band, although in some countries networks continue to use the C-band.

Third generation terminals with antennas with a diameter of 1.2 m or less have become very common. They are used in large networks, are characterized by a low level of intermittent traffic between them. Such terminals are simple in design, low in price and operate exclusively in the Ku-band.

Recently, the fourth generation of VSAT for multimedia applications has appeared on the market - USAT (Ultra Small Aperture Terminal). They operate in the Ku- and Ka-bands and provide speeds of up to several megabits per second. At the same time, the size of their antennas (in the Ka-band) does not exceed 76 cm, and the price is in the range of $ 500-1000. An example of such equipment is.



 


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