DVB-T2 is a digital television standard. And the T2 prefix means that this is the second generation of the general group. It was created based on existing generation standards to increase the overall performance of television networks by 50%. And at the same time their quality and reliability. The fact that this is DVB-T2 will be discussed in this article.

Description

This standard is very different from previous versions. This means that receivers of older versions do not support it. DVB-T2 is characterized by modulation types QPSK, 16 QAM, 64 QAM and 256 QAM. Depending on the application of one or another maximum speed digital stream can vary from 7 to 50 megabits per second.

The system structure is based on the transmission of MPEG-TS type transport stream. At the same time, several streams can be transmitted simultaneously through the DVB-T2 standard. For this purpose, a special data preprocessing system was used.

Development

In the early days of television, the most popular standards were NTSC, Pal and SECAM. They were responsible for color coding. During the development of television systems, some of them became extinct, while others live and are still in use. With the global transition of television to digital, these standards are gradually disappearing into oblivion.

The main reason for the transition to digital television was the possibility of data compression using the MPEG algorithm, thereby significantly increasing the characteristics and quality of the transmitted signal.

Today in the world there are several generally accepted standards specific to each region. DVB and derivatives are used in Europe, ATSC is used in America, ISDB and DTMB are used in Japan and China respectively.

Basic features of digital DVB-T2

These include:

multi-channel multiplexing, that is, combining several channels into 1 digital package;

display in standard definition modes, high definition and ultra-high definition;

3D TV display;

displaying video on demand;

• teletext;

  sound in Dolby Digital format;

  date and time synchronization;

  broadband internet access.

DVB-T2 signal reception system

Receive signal of this type maybe a special terrestrial antenna, which must be connected to special receivers. They can serve as TVs with built-in modules, as well as separate DVB-T2 set-top boxes or tuners. They usually need to be purchased separately.

Digital What does this mean?

When switching to digital television, many users are faced with a choice technical devices to display it. The DVB-T2 module may or may not be present on the TV. When buying, you should pay attention to this in modern realities. Of course, most innovative TV models already have a built-in DVB-T2 module. What does this mean in practice? This means that when broadcasting digital terrestrial television, the user will not need to purchase additional additional devices such as receivers or tuners.

Brief overview of devices for DVB-T2 reception

There are a lot of devices on the modern market that support the DVB-T2 standard. Among them there are already ready-made solutions that come directly built into the TV or in a separate version, the so-called tuners or receivers. They are also sometimes called digital DVB-T2 set-top boxes.

TVs

The line has the ability to work with the DVB-T2 format Samsung TVs, LG, Sony and many others. There is no point in specifically describing the characteristics of TVs, since the DVB-T2 TV standard is either present in them or not. Of greater interest is the review of consoles.

BBK SMP 243 HDT2

The most common digital TV tuner. Made in the form of an external unit that is installed next to a device, such as a TV. It can work with both the new digital television standard DVB-T2 and the more outdated DVB-T. Features include support for several high-definition video standards, including 720p, 1080i and 1080p. There is a teletext mode, a recording timer and delayed viewing. For outputs of audio and video data there are audio output, HDMI and standard composite. The cost of the device does not exceed 1000 rubles.

Oriel 794

Digital tuner that supports 720p and 1080p high definition signal reception modes. Has outputs for audio, HDMI, SCART and composite. It has its own display, which displays channels and other information necessary for the user. Can display teletext if supported by digital channel. Can record video and display it in delayed viewing mode. The cost of the device ranges from 1200 to 1600 rubles.

Avermedia Technologies Avertv Hybrid Volar T2

External TV tuner with a large list of capabilities. Actually, its cost varies from 4500 to 4900 rubles. It has, like other examples, an external display. Can record MPEG 1 and 2 video. Supports 720p, 1080i and 1080p HD video formats. It can also connect to tax television with Pal, SECAM, NTSC standards. Audio output, s-video output and composite output are used to output data. Teletext functions, video recording and delayed viewing mode are present.

This device is primarily intended for use on computers. Therefore there are system requirements requirements for the PC. A processor of at least Pentium 4 with a frequency of 2 GHz will be required. At least 256 MB random access memory And USB port, since the tuner is connected with its help. You also need Direct X Version 9 installed on the operating system.

Rombica Pro DVB-T2

A very compact DVB-T2 tuner that connects to a computer. Therefore, it is designed in the form of a small flash drive. Can display video in high definition format 720p, 1080i, 1080p. It can also record video in various formats. Equipped with a remote control remote control to change channels from the sofa. The cost of the device does not exceed 3 thousand rubles.

What does the transition to DVB-T2 give?

Firstly, it is worth noting the excellent signal quality. Unlike analogue, digital television either exists or it doesn’t. An analog signal can have a smooth transition from a good picture to a bad one.

In the same frequency resource you can use much more large quantity channels. The so-called package can now accommodate several programs simultaneously, from 6 to 18.

A distinctive feature of the DVB-T2 standard signal is the fact that it is not subject to noise. That is, in those areas where the analog signal was difficult to receive, DVB-T2 will work much more efficiently.

It is now possible to broadcast the channel in high definition HDTV mode. The quality of this picture is truly amazing.

The DVB-T2 standard has one more interesting feature. It can be taken on the move. That is, televisions with DVB-T2 modules can now be installed on vehicles and receive television channels.

Conclusion

So what is it - DVB-T2? This is a new innovative standard that significantly increases the capabilities of data transmission over television channels. High definition, acceptable signal reception levels, higher speed, less equipment for reception and many other useful nuances. With the advent of DVB-T2, a new era of television begins. All that remains is to wait for the complete transition of all broadcasting companies, as well as users, to this single standard.

It is worth noting that in Russia the development of the DVB-T2 standard is progressing at a significant pace. Many providers cable television The list of channels in HD format is constantly expanding. Television and radio companies are gradually following them. Now even being in the outback Russian Federation You can use new technologies to watch television. As a last resort, you can also use a satellite dish with DVB-T2 support.

How to connect and configure equipment for DVB-T2 reception

A brief description of terrestrial digital television of the DVB-T2 standard is given.

Now let's look at it in more detail:

What is DVB-T2?

DVB-T2 Digital Video Broadcasting - second generation digital terrestrial television standard. Unlike the first generation DVB-T standard, DVB-T2 increases the utilization rate of network capacity by 30-50%, while preserving the basic infrastructure and resources. The DVB-T2 standard has been adopted for broadcasting digital terrestrial television programs within the framework of the Federal Program (Development of Television and Radio Broadcasting in the Russian Federation). For broadcasting television programs in the DVB-T2 standard, radio frequencies of the meter (174-230 MHz) and decimeter frequency ranges (470-790 MHz) are used for 6-12 and 21-60 frequency channels, respectively. The development of television and radio broadcasting in the Russian Federation for 2009-2018" is determined by the "Russian Television and Radio Broadcasting Network" (RTRS). This state operator broadcasts two multiplexes in the DVB-T2 standard - RTPS-1 first multiplex and RTPS-2 second multiplex. Expanded broadcasting is carried out in the Republic of Crimea and Sevastopol ( regional multiplex). The television channels of the packages (RTRS) are completely free and open for reception (FTA). The DVB-T2 standard implements free, digital services and services: definition television (SDTV) standard, subtitles, teletext, TV guide, stereo sound, digital radio, time and date synchronization with digital television broadcasting.

Television programs of the first and second multiplexes - RTPS-1 and RTPS-2

First multiplex Second multiplex

How to receive DVB-T2

What is needed for this -

The first thing you need for reception of programs free terrestrial digital television is TV antenna UHF. The antenna can be indoor

Outdoor (street) - depending on reception conditions.

Residents of private houses, dachas and cottages need individual antenna.

Residents of high-rise buildings can use a common building antenna (provided it exists).

The second thing you need is digital set-top box DVB- T2 (receiver).

Receiver required for transformation digital signal to analog. The digital signal from the UHF antenna arrives at the input digital receiver, the receiver's processor processes the digital signal (digital) into a regular analog signal, which can be viewed on almost any TV or monitor - how to make a TV out of a monitor.

How to choose an over-the-air receiver, what to look for when buying a receiver in my article " choosing a DVB-T2 receiver - useful tips"

There will be a continuation of the article after a while. I'll tell you how to connect and configure the receiver. How to use the receiver's special functions to adjust the antenna.

(Korean Mobile TV)

T-DMB (ethereal) S-DMB (satellite) MediaFLO Codecs Video codecs

• H.264 (MPEG-4 AVC)

Audio codecs Frequency range

DVB-T2 is the last in the family of DVB standards for digital terrestrial (terrestrial) television, since it is physically impossible to implement a higher “information transmission rate per spectrum unit”.

Standard

The following characteristics have been developed for the DVB-T2 standard:

• COFDM modulation with QPSK, 16-QAM, 64-QAM or 256-QAM groups.
• OFDM modes 1k, 2k, 4k, 8k, 16k and 32k. The symbol length for 32k mode is about 4ms.
• Relative lengths of guard intervals: 1/128, 1/32, 1/16, 19/256, 1/8, 19/128 and 1/4. (For 32k mode maximum 1/8)
• FEC with cascade application of LDPC and BCH correction codes.
• DVB-T2 supports channel frequency bands: 1.7, 5, 6, 7, 8 and 10 MHz. Moreover, 1.7 MHz is intended for mobile television
• transmission in MISO mode Multiple-Input Single-Output) using the Alamouti scheme, that is, the receiver processes the signal from two transmitting antennas

Comparison of DVB-T and DVB-T2

The following table compares the available modes in DVB-T and DVB-T2.

	DVB-T	DVB-T2
Error Correction (FEC)	Convolutional code + Reed - Solomon code 1/2, 2/3, 3/4, 5/6, 7/8	LDPC + BCH 1/2, 3/5 , 2/3, 3/4, 4/5 , 5/6
Modulation Modes	QPSK, 16QAM, 64QAM	QPSK, 16QAM, 64QAM, 256QAM
Guard interval	1/4, 1/8, 1/16, 1/32	1/4, 19/256 , 1/8, 19/128 , 1/16, 1/32, 1/128
DFT dimension	2k, 8k	1k, 2k, 4k, 8k, 16k, 32k
Dispersed pilots	8% of the total	1 % , 2 % , 4 % , 8% of the total
Continuous pilots	2.6% of the total	0,35 % of the total
Bandwidth	6; 7; 8 MHz	1.7; 5; 6; 7; 8; 10 MHz
Max. data transfer rate (at SNR 20 dB)	31.7 Mbps	45.5 Mbit/s
Required SNR (for 24 Mbps)	16.7 dB	10.8 dB

Maximum data rate at 8 MHz bandwidth, 32K subcarriers, with 1/128 guard interval, PP7 subcarrier layout:

Modulation	Code speed	Maximum digital speed stream, Mbit/s	T2 frame length, OFDM symbols	Number of codes words in frame
QPSK	1/2	7.4442731	62	52
	3/5	8.9457325
	2/3	9.9541201
	3/4	11.197922
	4/5	11.948651
	5/6	12.456553
16-QAM	1/2	15.037432	60	101
	3/5	18.07038
	2/3	20.107323
	3/4	22.619802
	4/5	24.136276
	5/6	25.162236
64-QAM	1/2	22.481705	46	116
	3/5	27.016112
	2/3	30.061443
	3/4	33.817724
	4/5	36.084927
	5/6	37.618789
256-QAM	1/2	30.074863	68	229
	3/5	36.140759
	2/3	40.214645
	3/4	45.239604
	4/5	48.272552
	5/6	50.324472

DVB-T2 system structure

Generalized scheme for processing transmitted signals in the DVB-T2 system.

Service capabilities

The DVB-T2 standard allows you to provide various digital services:

• 3D television in the DVB 3D-TV standard;
• interactive hybrid television in the Hbb TV standard;
• multisound (choice of broadcast language);
• access to government services in electronic form (in Russia);
• emergency warning system (in Russia).

DVB-T2 signal reception

Reception of the DVB-T2 signal is carried out by an over-the-air collective, individual or indoor antenna connected to a TV with a built-in DVB-T2 tuner (decoder) or to a DVB-T2 receiver (set-top box).

Also, the DVB-T2 signal can be received on any computer with a built-in DVB-T2 digital TV tuner.

Usage

Europe

• UK: one multiplex, trial run December 2009, fully operational April 2010.
• Italy: one multiplex, trial run October 2010.
• Sweden: two multiplexes, full launch in November 2010.
• Finland: five multiplexes, trial launch in January 2011, fully launched in February 2011.
• Spain: two multiplexes, full launch in 2010.

Russia

By Order of the Government of the Russian Federation dated March 3, 2012 No. 287-r, the only digital terrestrial television standard for Russia is the DVB-T2 standard. By Order of the Government of the Russian Federation dated May 24, 2010 No. 830-r, the performer of work within the framework of the federal target program “Development of television and radio broadcasting in the Russian Federation for 2009-2015” identified the “Russian Television and Radio Broadcasting Network”.

Ukraine

• Test broadcasting of digital television in the DVB-T2 standard from the Kyiv television tower began on August 18, 2011.
• On November 1, 2011, broadcasting in the DVB-T2 standard began in Ukraine.
• Since February 2012, the DVB-T2 signal is encoded throughout Ukraine

What is a digital media receiver? Operating principle of the DVB-T2 digital set-top box. How to choose a digital media receiver for DVB-T2 and DVB-C? How to connect and configure the receiver. The best digital set-top boxes.

Digital media receiver – small device receiving digital TV signal. After purchasing it, you will be able to view digital channels on absolutely any TV.

Setting up a DVB-T2 digital set-top box does not require any special skills or effort, which makes it even more convenient for consumers. There are two types of digital media receivers: home (stationary) and car. The former are needed for working indoors, the latter - in cars. Set-top boxes for digital TV DVB-T2 are functional, have a clear and user-friendly interface. Receivers support various video and audio formats and have a timeshift function that shifts the viewing time of television programs.

The DVB-T2 terrestrial digital set-top box is a device for converting a signal that comes from satellite dish, and display it on a TV screen or PC. The main component for any digital media receiver is CPU, responsible for receiving, processing the signal, outputting the picture and recording data on HDD, which is the second an important component for the receiver. Below is structural scheme for on-air digital set-top box.

Let's consider it. At the first IF, the signal (range 950-2150 MHz) from the output of the LNA converter (LNB) is supplied via cable to the microwave receiver (a unit designed to amplify and convert the signal to the second IF 480 MHz). Correction occurs in the demodulator possible errors, the stream selected at the output goes to the demultiplexer (divides the total stream into video, sound and data) and decryption is performed.

In the MPEG-2 video decoder, video signals are decoded into decompressed digital signals, after which the video signals are separated in the form of the following components: luminance (U), green (G), red (R), blue (B). The encoder of a color television system converts standards, which means that you can connect a television receiver to its output that operates in one of three standards for analogue television: PAL, SECAM or NTSC. From the audio decoder you can output both digital and analog signals. The microprocessor controls the demultiplexer - decoder and selects the signal in case of implementing an interactive communication system, and it also selects integrated data packets. As for the digital control module and IR sensor, they provide the ability to remotely control over-the-air digital DVB set-top box T2.

How to choose a digital set-top box

Now on the market there are many different digital set-top boxes DVB-T2 (terrestrial TV), DVB-C (cable TV), DVB-S2 (satellite TV). Receivers differ in functionality and price, and many people want to make a choice in favor of the optimal device without overpaying money. Below is an overview of the criteria for selecting the optimal option.

First, let's talk about set-top boxes for terrestrial digital TV. As for standards, it is worth paying attention to set-top boxes that support the DVB -T2 standard (MPEG-4 encoding). If we talk about digital media receivers that support HDTV high-definition video signals and 3D capabilities, then you should not choose such set-top boxes if your TV does not support such functions. Please note whether audio-video signal processing formats are supported: MPEG4 (AVC/H.264) SD/HD / MPEG-1 Layer I/II, MPEG-2 Layer II, MP4 and MP3, AAC, AVI, WAV, MKV, MPEG, JPEG, DivХ, USB PVR.

Regarding functions, it is worth choosing a set-top box that supports TimeShift, this makes it possible to delay watching television programs. The recording duration directly depends on the memory capacity of the storage device, which can be connected via a USB port. It is important to have hardware buttons on the front panel to control basic functions, so that your device does not turn into a useless brick due to the loss or breakdown of the remote control.

Pay attention to the connectors. It is also best to choose a set-top box that has a sufficient number of USB ports. If you need a receiver to watch television in high resolution, then it is desirable that the tuner have an additional HDMI connector or at least a component one (YPbPr).

If you use cable analog television, then you don’t need to buy a set-top box yourself. First, contact your provider. Find out the conditions and method of connecting cable TV. Usually the company connects everything itself and uses a receiver model specially tailored for the cable network.

How to connect and configure a digital receiver

To begin with, before setting up, you should connect the DVB-T2 set-top box to the TV. The diagram is presented below.

Setting up the receiver requires minimal effort. The main thing you need to do is set up the channels. Go to the channel search menu and select auto search. Don't forget to set the country correctly. After a few minutes, the set-top box will find a certain number of channels. In the next menu item “Video” we set the necessary settings (mostly those that are set by default are suitable). In the “Time” item we set the region and time zone. Next, set the language for the menu, subtitles and audio. In the “System” tab you can put parental control and password. You can also choose to return to factory settings, update the software, or read information about the set-top box. In the “USB” item you can select the playable format (music, photo, video) and configure PVR.

It is worth noting that each digital media receiver has its own configuration features; above is a general overview.

The best digital TV set-top boxes DVB-T2

Digital television the new standard is increasingly gaining popularity. Digital broadcasting characterized high quality images and advanced features.

After analyzing user reviews, you can determine this rating of the best digital DVB-T/T2 set-top boxes.

Digital television standards are constantly being improved, let alone talk about the familiar analog signal, which is gradually becoming a thing of the past. But what to do if buying a modern TV with digital signal decoding is not part of your plans, especially in conditions country house or are dachas not entirely rational? The logical solution would be the best digital TV tuner dvb standard t2 for a TV, the one that is already in the house. This is an extremely budget purchase, unless you choose a new-fangled model with the maximum range of functions. The Marka.guru portal has prepared a rating of classic DVB-T2 set-top boxes, as well as IPTV for smart devices.

Before purchasing, you should decide on the set of functions that the receiver should perform; this will greatly facilitate the choice and help you decide on the device segment.

1. Classic T2 receiver for digital terrestrial television - perfect option, if there is no goal to increase the number of channels. A device with a minimum of functions and a cost of up to 1000 rubles will allow you to obtain a high level of picture quality.
2. Receiver for Smart TV boasts the ability to control display, record programs, timer, delayed start.
3. Access card slot To paid content can become an important component in the operation of set-top boxes. New opportunities open up for users to increase the number of channels, but only after concluding an agreement with the provider.

And now more details about each model of the console included in the rating.

DVB-T2 standard

Such a TV set-top box can change the signal reception quality of a regular street antenna. As a rule, the difference in image quality becomes most noticeable.

The digital signal is characterized by improved sound; it becomes larger, even if the TV remains the same, as does the quality of the speakers.

A budget solution that will significantly change the viewing of your favorite programs and films on terrestrial television.

1. Selenga T40

The most simple and reliable device for receiving a digital signal. This is objectively the best digital TV tuner of the dvb t2 standard for the most ordinary country TV.

There are no difficulties in connecting and setting up; the package also includes the console itself, a remote control and a power supply.

The acquisition cost is extremely attractive - about 1000 rubles.

• designed to connect external cards memory;
• there is a timer synchronized with the recording function;
• excellent build quality;
• simple and high-quality software.

• high noise level during operation.

Prices for Selenga T40:

2.HARPER HDT2-1005

Compact device with best level quality of the converted signal.

The autonomy of the receiver is complemented by a classic design and high-quality assembly of the case.

The equipment is standard, no frills. One of the advantages is the remote control with large and quite convenient buttons. The price of the set-top box is also about 1000 rubles.

• finds a fairly large number of broadcast channels;
• has an affordable price;
• quickly connects and configures;
• There is a convenient wall mount.

• There are no control buttons on the device body.

Prices for HARPER HDT2-1005:

This is not just an external tuner, it is a full-fledged media player with recording function and support for HD format. Optimal choice options and quality of the device.

Supports an incredibly large number of playable file formats, both video and audio.

However, it copes well with the immediate task of receiving and decoding a signal. The receiver costs about 1500 rubles.

• stylish design;
• possibility of connecting additional external devices;
• remote IR port;
• picks up the signal perfectly.

• gets very hot.

Prices :

4.BBK SMP240HDT2

This receiver copes well with the signal even without an antenna, just a short wire is enough. This is the best budget option with a wide range of features.

If you need a recording timer, delayed viewing mode, as well as teletext - all this is provided in the device and works in the best way.

VVK receivers are easy to maintain and do not require frequent updates firmware. The minimum cost is about 900 rubles.

• customizable video playback from external media;
• intuitive controls;
• low cost;
• possibility of broadcast recording.

• inconvenient remote control.

Prices for BBK SMP240HDT2:

A compact device of the DVB-T2 standard, which perfectly receives the signal, with the ability to control viewing and recording of the broadcast on an external media. Video and audio files can be played.

Has assembly good quality and the simplest possible connection to the TV.

A functional device for only 1000 rubles.

• compact body;
• reliably receives television and radio signals;
• clock display;
• updated firmware from the manufacturer.

• The remote control is not very sensitive.

Prices :

Compact and simple tuner with standard media functions.

It does its job perfectly even in settlements remote from the city, located at a distance from signal sources.

Today this is one of the cheapest receivers with similar functionality and the ability to connect external devices, the minimum cost is about 660 rubles.

• accessible interface;
• minimum conditions for a secure connection;
• excellent image quality;
• quality materials.

• there is no control on the receiver.

Prices :

7. D-COLOR DC1302HD

Equipment for comfortable viewing of your favorite programs and films, both live and recorded.

It has a highly sensitive tuner for maximum amplification of the received signal, as well as an output for Dolby Digital - surround and high quality sound simply guaranteed.

High picture quality up to 1080 pixels, as well as recording and delayed viewing functions. An excellent gadget is complemented by a display and a clock. The purchase price will be a little more than 1000 rubles.

• wide functionality;
• compact size;
• ergonomic and fast-acting remote control;
• practically does not heat up

• short power cord.

Prices for D-COLOR DC1302HD:

8. D-COLOR DC1002HD

A simple and most understandable receiver. Equipped with everything you need: recording, timer, display with clock, playback from external storage devices. It has a modern design with simple and accessible controls.

Suitable for any TV, an excellent alternative to a media player.

The cost of the set-top box is about 1000 rubles.

• simple Russian menu;
• excellent quality of materials;
• affordable price;
• excellent signal quality of the DVB-T2 broadcast standard.

• In some formats there is a separation of sound and picture.

Prices for D-COLOR DC1002HD:

Smart TV IPTV standard

These are new generation consoles that turn viewing into a completely controlled process.

Smart TV class devices are perfectly synchronized with TVs via local network or using a cable.

High signal quality, excellent picture and maximum interactivity - all this at an acceptable, but not so low price.

1. Apple TV Gen 4 64GB

This compact box from a well-known brand combines a lot of features and advantages of a whole range of equipment.

You shouldn’t think that you can only use Apple services, not at all, access is open to free and simply popular resources.

Despite the fact that the price is quite high and starts from 11,000, the high-quality picture and wide functionality will quickly convince you that the costs are justified.

• extremely stylish brand design;
• integration of media content on the screen;
• multi-level synchronization with electronics;
• access to numerous services.

• To expand the functionality of the Smart TV set-top box, you need an Apple account.

Prices for Apple TV Gen 4 64GB:

This model instantly syncs with modern TVs, opening the way to the maximum amount of content and files. A functional remote control that allows you to control viewing and a wide range of functions that change the perception of watching TV at home, turns it into a high-tech process with maximum comfort for the consumer. The cost is much more pleasant than that of the leader in the rating, and is about 4,000 rubles.

• universal and fast-acting remote control;
• convenient combination of connectors;
• powerful processor with 4 cores on board;
• does not overheat.

• Video from the Internet may freeze due to access speed.

Prices :

3. MXQ Pro TV Box

What's important is that this minimalistic device supports 4K, which means stunning images are guaranteed from the moment of purchase.

Fast response is guaranteed by 4 processor cores with 1 GB of RAM. Expansion of functionality and regular updating of services provides access to Google Play. The acquisition cost is only 2500.

• excellent combination of characteristics;
• quick setup;
• Wi-Fi reception at quite a distance;
• customizable remote control.

• by 2018, no branded service centers had appeared.

MXQ Pro TV Box prices:

Conclusion

Change reception quality TV signal It’s quite simple, just buy a digital set-top box and set it up in a few minutes. Even in the outback without connecting to satellite services, you can increase the number of received channels and significantly improve picture quality. The Marka.guru portal reviewed only the most popular and proven models of receivers that turn watching programs into a real pleasure.