Digital tuner DVB T2. What it is?

When it comes to buying a new TV, most people turn their attention only to the quality of the transmitted image, as well as the technical characteristics on which it depends. The price of the device is also important. But the presence or absence of a digital tuner, as well as its type and quantity, is of little interest to anyone. Not many people pay attention to this. As a result, when there is a desire to connect and watch DTV for free, problems arise and you have to spend money to buy a DVB-T2 tuner separately.

Today we will look at what a digital tuner is, what it can be and how it works. This will allow you to approach the choice of a new TV more carefully and decide for yourself whether you need such a device built into the TV or not. Moreover, as already mentioned, the digital tuner can always be purchased separately.

What is DTV T2

Before considering the features and types of tuners that exist in TVs today, it is necessary to understand what, in principle, this device is and what it is for. A digital tuner is a receiver or, as it is also called, a decoder, which allows the TV to directly receive signals of various types of broadcasting and decrypt them.

Many newer TV models already have a built-in T2 digital receiver. In addition, there are divisions in which there are two tuners at once - T2 and S2. You can find out which type of device is built into your TV by looking at its specifications. If you have a built-in decoder that accepts a signal of a different format, then the necessary tuner can always be purchased separately.

External tuners are very popular today, since not many Russian citizens have the opportunity to spend a large amount of money to buy a new TV, and such a set-top box allows you to expand the capabilities of an existing device. The most popular are T2 set-top boxes, which allow you to connect and watch, as well as the DVB-S2 set-top box. They buy it if they decide to install a satellite TV antenna, but there is no such type of decoder on the TV.

Broadcast standards

As already mentioned, the tuner built into the TV can receive one or more signals of different broadcast formats. Let's consider the most common options.

• DVB-T. Such a receiver can receive a digital television signal, which transmits a picture of a higher level of quality and clarity. To connect it, you need a regular TV antenna.
• DVB-T2. This is the second generation of DVB-T decoders, which differs from its predecessor in increased channel bandwidth, higher signal characteristics and its architecture. On the territory of Russia, it is this DTV signal format that is mainly used. It is impossible to receive it through a DVB-T decoder, as these formats are incompatible.
• DVB-C. A very popular format that can decode a digital cable TV signal. To start using it, you need to insert the provider's card into the corresponding slot.
• DVB-S. With it, you can directly connect a satellite dish to your TV.
• DVB-S2. Like T2, S2 is the second generation of DVB-S receivers. S and S2 are also incompatible, so an appropriate decoder is needed to receive this type of signal. This format is distinguished by increased channel bandwidth and the use of new types of modulation.

When buying a TV, you should pay special attention to the labeling. So, you can see the inscription DVB-T2 / S2. This means that the TV will be able to receive both terrestrial and satellite digital channels.

Features of DVB-S2 and DVB-T2

The built-in digital satellite TV tuner has certain features. In order to watch free available TV channels, it will not be enough for you to simply connect the satellite dish to the TV directly. You will also need to additionally purchase a CAM module.

The fact is that without it you will not be able to view the encoded channels, but only those that are fully open. This is due to the fact that the companies involved in the production of such TVs do not really think about this. In addition, it will be impossible to change the firmware or enter the code. External satellite tuners sold by us have firmware, which already contains all the necessary codes.