How to get 20gb on airtel broadband

From DSL to TV cable: an overview of broadband technologies

"Broadband" means fast Internet access with a high data transfer rate. Since there are various techniques in this regard, "broadband" is used as a collective term. In contrast, Internet access via an analog or ISDN modem is referred to as "narrowband". You can visualize this very clearly: Narrowband allows only low data throughput (surfing the Internet is consequently slow), while broadband enables extensive data throughput (surfing the Internet is fast).

What do you need broadband for?

Broadband access has been on the rise since the beginning of 2000. The market for broadband internet is still a growth market, although more and more households are going online with fast internet access. This is understandable, of course, because fast internet access makes the network convenient. Shopping, webcam chat, sending e-mails, watching videos, downloading music, uploading photos - all of this can be done in no time with a broadband Internet connection.

Broadband is that fast

Using the web is much more fun with broadband internet access. © Silvano Rebai /

Broadband access in Germany varies in speed and where exactly broadband begins is not always agreed. There is the so-called "DSL light" from Telekom (previously "T-Home"), which enables surfing at 384 kbit / s - that's six times faster than ISDN, which has a speed of 64 kbit / s. Of course, this cannot be called "broadband".

Building on this, DSL speeds of up to six, eight or 16 Mbit / s are the rule, although these speeds are not always achieved. With VDSL and vectoring technology, 50 or 100 Mbit / s are also possible. The cable providers, such as Vodafone Kabel Deutschland and PŸUR, are also leading the way in terms of speed - here, up to 500 Mbit / s and more are possible without any problems.

Incidentally, the end of the flagpole has not yet been reached, you can also book faster access via fiber optics or LTE! In addition, work is of course being carried out to advance the technologies even further.

Broadband is implemented in different ways

In Germany, a basic distinction is made between five broadband forms. As there would be:

  • Internet access via DSL (ADSL, SDSL, VDSL)

    With DSL, Internet access is implemented via the existing telephone line. In principle, DSL can therefore be used wherever an analog or ISDN telephone connection is available. In metropolitan areas and cities, the availability is largely comprehensive, there are gaps in supply especially in rural areas.

    More information about VDSL

  • Internet access via fiber optics

    With fiber optic connections, thin fibers made from fused quartz glass are used. These optical fibers can transmit signals much faster and with less loss than copper cables. Data rates of up to 1 Gbit / s in the downstream and 500 Mbit / s in the upstream are possible.

    More information about fiber optics (also FTTH or Fiber To The Home)

  • Internet access via TV cable

    The existing cable TV networks are usually used for broadband internet via cable. These are a lot more powerful than normal DSL connections and are usually less prone to interference. Data rates of up to 1 Gbit / s in the downstream and 50 Mbit / s in the upstream are now possible via cable internet.

    More information about cable internet

  • Internet access via cellular network (LTE)

    With the fourth generation cellular standard - LTE (short for Long Term Evolution) - data rates of 1 Gbit / s in the downstream and 50 Mbit / s in the upstream are currently possible. Even higher data rates are to be achieved in the future. Different frequency ranges are used for LTE. This means that LTE can not only be used for mobile Internet access when on the move, but also serves as a stationary broadband connection at home. The latter is used in particular in rural areas.

    More information about LTE

  • Internet access via satellite

    With satellite internet, broadband access is provided via a geostationary satellite. The technology can be used in almost all areas in Germany, but the costs for satellite internet are usually somewhat higher than with other technologies. Transfer rates of up to 50 Mbit / s can be achieved in the download.

Advantages and disadvantages of broadband technologies

The most widespread broadband internet access in Germany is DSL. The availability is high, and you usually have the choice between several providers. A disadvantage is the decreasing speed with increasing distance from the exchange.

At the same time, cable internet is enjoying growing popularity. The cable connection provides fast and constant Internet speed, but the cable network must be modernized for Internet functionality. But this can only be done gradually and requires high investments. In addition, there is usually only one cable provider in one place.

UMTS was already considered a new savior at the beginning of the millennium, but it took a few years for the technology to gain acceptance. Thanks to the popular surf sticks, which are simply fitted with a SIM card and plugged into the USB port of the laptop, mobile broadband began its triumphal march. With UMTS you can surf the Internet with up to 7.2 Mbit / s, with extensions HSPA +) with over 40 Mbit / s. The successor standard LTE enables speeds of 100 Mbit / s and more.

Internet via satellite is one way of getting broadband into the house - but this option is comparatively complex and expensive. A distinction has to be made between 1-way and 2-way satellite connections. With the former, the satellite can only receive the data (return channel), but not send it. For this you also need a forward channel.