We live and move in the world of information flows, making dozens of phone calls, while not always being in the office or at home, to some extent faced with the 3G standard (short for "third generation"). Let's ask ourselves: "What is 3G in the phone?"
Europe is guided by a special "dialect" of the specified standard - UMTS, which is a compromise between the better CDMA standard and the larger coverage and the number of GSM subscribers. 3G networks operate in the decimeter band, approximately 2 GHz, with a data transfer rate of 1–3 Mbps. The basic services of 3G networks include voice and data communications. Those who criticize this set of services for low privacy, recalling the previous standard, do not understand what 3G is in a phone now. Today, high-speed data transmission provides communication for both business (e-mail, videoconferencing, remote access to databases, bank account management) and personal interests (games, social networks, multimedia complexes,online shopping). The transmission speed changes inversely with the speed of the object. In the case of being on the spot - 2048 Kbps, when driving at speeds up to 3 km / h - 348 Kbps, up to 120 km / h - 144 Kbps. Unlimited mobile Internet is popular with users, giving them the opportunity to use the resources of the global network for a fixed monthly fee. Many are interested in the question: “How to choose the best operator?” The answer is simple. First, determine if you are satisfied with its coverage area. Then evaluate the provider's rates. Then make a decision.
But 3G internet - what is it? Not only mobile phones. If you have a PC, netbook, laptop, then you need a 3G modem to connect to the wireless Internet. The most versatile is a USB modem that plugs directly into a computer's USB port.
Except for ExpressCard, PCMCIA. For subsequent confident signal reception, it is important to choose the quality of the device in question, its frequency range, and signal transmission speed. Well, if the nearest provider tower is close. At a distance of 10-50 km, a passive 3G antenna will ensure stable operation of the modem. The internal one will amplify it by 5-10 decibels, but sometimes an external, more powerful one is needed. For this, you may need a 3G Wi-Fi router. Please note that for the three frequency bands of 3G Internet: 450, 800, 2100 MHz - the corresponding modem with an antenna is selected.
The market for modernsmartphones and communicators. These are "classic" devices that illustrate what 3G is in a phone. They, in addition to voice communication, are equipped with a built-in 3G modem and serve information exchange with the WWW. HTC and Samsung (Android platform) and Apple (iOS operating system) are at the forefront of progress.
Today, mobile devices with a large diagonal - tablets - are gaining popularity among users. This device may contain an integrated 3G modem (which is recommended, especially if the manufacturer is China), if not, then you need to purchase it. A situation of "non-acceptance" of separately purchased modem drivers is possible.
The dialectics of the scientific and technological revolution, the profound understanding by scientists of the question "what is 3G in the phone" led to the next stage - 4G. Despite the existing potential, 3G is just a separate stage of global development. 4G technology, which has another name - LTE (Long Term Evolution), improves existing networks by increasing the speed, as well as the volume of transmitted information. Norway and Sweden became the pioneers of the new technology. There is no alternative to further development: the Russian basic providers Beeline, MTS, Megafon have already begun work in accordance with the international agreement on communication services in the LTE standard.
