GSM modem is a modern electronic device, the use of which allows modulating data in automatic transmission systems and appropriate demodulation. It should be understood that these devices produce modulation of information received directly from a computer for its transmission over communication networks.

Automatic data transfer systems today are used in many branches of human life. In "SpetsTehKonsalting" you can buy a modem of various purposes. Modern GSM modem is mainly used to transmit information over cellular channels. Industrial automation practices the use of modems in order to implement remote control and alarm systems, telemetry, and also to obtain readings from various sensors.

In “SpetsTehConsulting” you can buy a modem that will ensure the transfer of information over GPRS networks, which is quite popular with the organization of remote dispatching and the ability to control objects or devices. We also have modems that work with two cards, which are widely used to implement Internet access, remote control of instruments and sensors, in security systems, etc.

GSM modem is a reliable device that provides many possibilities. For example, ATM2-232 is intended for use when it is necessary to organize an energy accounting system. It is also in demand in systems that manage technological processes and in the collection of various data. You can buy an ATM2-232 modem for signaling or a payment terminal. In “SpetsTehConsulting” you can purchase not only a GSM modem, we have a UbiqSerial GPRS modem, which provides the possibility of two-way network communication in the absence of a mandatory installation of VPN and fixed IP. This modem has wider functionality. Before you decide which modem to buy, you need to fully understand exactly what purpose you intend to use it. We have a fairly large number of modems, the cost of which depends on their capabilities and purpose. Always try to choose the optimal model, so there is no sense in overpaying for those functions of the modem that you will never use.

For its part, SpetsTehConsulting guarantees the high quality of the products offered by various manufacturers. Each modem has passed the profile certification and fully complies with all the characteristics stated on the site pages. We have specially laid out the full technical information about each product so that our customers can compare the characteristics of different models and buy a modem of the optimal configuration. We have the best modems of proven manufacturers. Read, understand, ask for advice - we will always come to the aid of our customers.

  Applications for GSM modems

GSM () are wireless modems that work with GSM networks. They provide transfer of information data from any part of the world that is covered by a GSM network. Currently, it is over 80% of the territories inhabited by people.

GSM terminals can be external devices or PCMCIA card devices (also called PC Cards). External GSM terminals are connected to the computer via Bluetooth, COM ports, USB or infrared ports. GSM modems for wireless connectivity as well as mobile phones require SIM cards.

Like dial-up modems, GSM modems support a set of common AT commands, but beyond that they are capable of supporting a set of extended AT commands. These additional commands are defined by GSM standards, allowing you to write, read, send and delete SMS messages, monitor signals and battery charge levels, write, search and read entries in the phone book.

So, GSM modems are devices that allow communication in accordance with GSM protocols. In other words, they allow you to communicate using wireless technologies — to receive calls and make calls, send and receive data, and receive and send SMS messages.

Now GSM has found its application already in a huge number of human activities and spheres of life. For example, GSM technologies play important roles in real estate security, and there is no need to lay additional wires and connections that can easily be cut. GSM is used in video surveillance systems, ATMs and security systems. With their help, you can remotely monitor the status of protected premises or buildings.

In motor vehicles and in the monitoring of moving objects. The devices allow you to organize control over the movement of vehicles in enterprises and from individuals, including all regions, receiving information about the exact location of a particular individual;

Implementation of telemetry: monitoring and control. GSM modems are used in “Smart Home” systems - remote notification systems to the owners of protected objects about real meter readings of gas, electricity, water, smoke and fire alarm, flooding, excessive cooling, movement, violation of the integrity of window panes;

Automation of energy accounting and control systems. Such a system of energy accounting allows to take into account the consumption of heat and electricity at industrial, residential and commercial facilities. The system can take into account the level of energy consumption at any level - home, district, city, settlement with the presence of a single dispatch and financial center;

Use in remote dispatching in the field of gas and oil and industry, telecommunications, water supply, etc. Dispatching systems are systems for the collection, processing and visualization of information data. Such systems will allow management, coordination and centralized control of various processes that occur at remote sites, using the rapid transfer of information between the control point and these objects;

Vending implementation. Use of GSM for data transmission and communication with vending machines, payment terminals, coffee and banking machines;

The scope of telemedicine. The use of GSM modems for address exchange between specialists with the necessary medical information in order to improve the quality, accessibility of treatment and diagnosis of specific patients.

Information transfer at 9600 kbps.

Use SMS short messages.

The first mode of operation has several advantages when compared with other types of data exchange. In addition to this, GSM transmission is currently a priority for operators, so the least of the system fails. SMS is beneficial for controlling different devices, however, due to the lack of delivery guarantee and the low priority of this type of service with radio operators, they have found their application in systems that require a low level of responsibility. As for the GPRS standard, one of its advantages is that in the pauses between transmission and reception they do not occupy the line.

Thanks to technology (of course, GSM modems), wireless communications are also used by vehicles, computers, machines and various devices. For example, you can track stolen cars and determine their location. GSM modems in combination with familiar to all car alarms will provide the highest levels of security for motorists.

It should be noted that GSM technology will enable energy suppliers to improve the efficiency of their business, improving the levels of service for each consumer. Manufacturers of meters began to integrate GSM modules into their products, because the use of GSM wireless modems simplifies the procedures for reading indicators from them. Thanks to this dishonest consumers, it becomes more difficult to manipulate the readings of the devices for cheating purposes.

The use of cellular communication can significantly simplify and cheapen the creation of any information management systems. The only thing that needs to be done is to connect GSM to the device. In addition, the operation does not need to use a special service.

When summing up, I would like to say that these wireless technologies, which have replaced wired models, seem to be the most convenient to use and, of course, more attractive. Therefore, every day GSM integrates more and more thoroughly into our lives, finding more and more new areas of use.

Today, the GSM standard is a communication protocol that is responsible for transmitting a mobile signal all over the world. GSM stands for Global System for mobile communication. The standard was created by Western countries and was released in 1982. The 900 MHz range was chosen as a single frequency standard, and it was with him that the GSM standard began to spread in Europe.

In essence, GSM is the second-generation mobile communication standard, while 3G is the third-generation mobile communication and is in competition with the GSM standard. Today, the GSM standard exists in four frequency bands, - 850/900/1800/1900 MHz. Modern mobile phones and gsm modems, most often, have the support of three or all four frequencies.

According to world statistics, almost 85% of cellular companies use the GSM standard as the main protocol. Globally, a third of the population today communicates using the GSM protocol. Among the key features offered by GSM networks, the following should be highlighted: data transmission (for example, a gsm modem provides wireless Internet access), voice, short messages, fax, multimedia messages. During the conversation, the user can take advantage of additional services such as conference calls, call forwarding, call hold, etc.

In this article we would like to dwell on the capabilities of GSM modems. Modern is a small device for wireless Internet access. Most often, these devices are sold in the offices of telecom operators, or purchased by users independently and after installing the SIM card are activated for wireless data transmission. To date, there are a variety of gsm modems. Most of them are connected to the computer via a USB port, so they often carry the name of a USB modem, which is not entirely correct. For example, in Moscow and some other regions of the country there is a Yota network, which has nothing to do with the GSM standard, but also provides access to the Internet using a 4G USB modem.

GSM modems are widely popular because they provide reception of messages, their sending, working with multimedia messages directly through a computer. Most importantly, they maintain a connection to the world wide web in places where the cable Internet will never get to. As a rule, each of the existing mobile operators offers for its subscribers access to the Internet via GPRS or EDGE. These two standards have been developed specifically for GSM networks in order to provide packet data capability. You have to agree that practically at any dacha there is a cellular communication from one of the leaders of mobile communication in our country - MTS, MegaFon or Billine. In short, if your mobile phone on this point of the earth finds a network, it means that you have a real opportunity to access the Internet.

Many users for a long time were forced to use their mobile phones to access the world wide web. This is not convenient enough, as it requires constant charging of the phone, its time-consuming connection and configuration. Entering the GSM modem market dramatically simplified the lives of users. At a cost of 20-30 dollars, the gsm modem does not exceed the size of a standard USB flash drive, its fast automatic setup and installation ensures that your computer is connected to the Internet in minutes.

Today, not only GSM modems are on the market, but also gsm routers. Modern gsm router provides distribution of one Internet connection between different user's computers. On the one hand, it is very convenient and saves money to the end user, on the other hand, and not so high connection speed according to GPRS / EDGE standards becomes even lower, due to its distribution among computers gsm router.

When buying a GSM modem, preference should be given to independent manufacturers who are not affiliated with cellular operators. This will allow you at any time to change the SIM card and start using the services of a new operator. When acquiring USB-GSM modems from operators, the procedure for changing the operator, as a rule, is rather painful, although these modems, as a rule, are somewhat cheaper than modems from independent manufacturers.