Anyone who has ever encountered satellite television knows that in order to gain access to watching satellite television channels, it is not enough to have a “plasma” in the house and a “dish” on its facade. The equipment package must include a receiver that acts as a decryptor digital signal. But not everyone knows that purchasing such a device can often be unnecessary. If the TV specifications indicate DVB standard S2 - this means that a tuner is already built into its panel for correct reception satellite channels.

DVB format - why is it needed on TV?

First, it’s worth clarifying what the abbreviation DVB actually means. In short, Digital Video Broadcasting is a line of European standards digital television broadcasting, which replaced the usual analogue one.

The abbreviated name of this term (DVB) also refers to receivers built into the TV that provide reception of a digital broadcast signal. In this small “family” there are three types of devices, each of which is responsible for a specific direction of television:

• DVB-T – terrestrial;
• DVB-C – cable;
• DVB-S – satellite.

Technologies do not stand still, and today updated formats have appeared that allow you to watch pictures on TV in improved (HD) quality. Their names use a prefix in the form of the number 2 - DVB-T2 and DVB-S2.

Advantages of TVs with built-in satellite receiver

Based on the above, it follows that televisions with a built-in DVB S2 tuner are a new generation of television equipment, where two devices successfully complement each other and give viewers additional features in watching satellite television. Manufacturers cite the following arguments as the advantages of this “tandem”:

• you can save on purchasing equipment;
• no need to allocate a separate space for installing the set-top box;
• the number of connecting cables is reduced;
• There is only one remote control in use.

In fairness, it is necessary to note some other features of TVs with built-in DVB S2.

The realities of modern satellite television

You should not naively assume that the tuner itself (even if there is an antenna) will provide unlimited access to all satellite television. For obvious reasons, operators “encrypt” their broadcasts.

Important: searching for channels will only provide information that they are encrypted if you do not additionally connect a conditional access module (CAM) to the TV. A smart card is inserted into this adapter, which serves as an identifier in the operator’s database.

All this requires additional costs. For example, the cost of a new Tricolor TV CAM module with support modern technologies, complete with a smart card and a monthly subscription to the “” package, fluctuates around 4-5 thousand rubles. In the future, you will need to renew the service for at least a year.

Advice: before making a serious purchase, you should “monitor” the offers of chain stores household appliances. They sometimes hold promotions under which some TV models with a built-in satellite receiver are supplied with kits consisting of a CAM module and a smart card.

You can often come across the opinion that built-in receivers are a little “not up to the level” of “full-fledged” ones. external devices. For this reason, when using such a panel to watch satellite television, experts recommend purchasing an antenna with a larger than average diameter and a high-quality converter.

In addition, satellite television operators (including Tricolor TV) persistently advise using their “proprietary” equipment. With a high degree of probability, they do this in order to make money on the hardware themselves. And yet the question involuntarily arises - maybe it’s really better to follow the recommendations for a more relaxed viewing?

Where can I buy TVs with built-in DVB S2?

All of the above features may be a reason for thought, but not a reason to refuse to purchase a “2 in 1” device. There should be no questions about where to buy a TV with a built-in satellite receiver. This technology is no longer new, and support for formats digital television Manufacturers implement it on almost all new models. You can buy them almost everywhere, there are options in a wide price range.

So, at LG you can this moment you can find several dozen panels with DVB-S2. Samsung also has more than fifty different series with built-in tuners. The brands Panasonic, Toshiba, SONY and Sharp have their own offers (though in smaller quantities). Find out if DVB S2 is on your TV a certain model(Samsung or another brand) you can simply:

• asking the store consultant;
• looking at specifications panels on sellers’ websites (usually the information is in the “Tuners” column);
• by carefully reviewing the “User’s Manual” that comes with the equipment.

TV viewers are often concerned about whether the presence of a built-in satellite receiver affects the price of the TV. As a rule, the cost of panels depends more on the “renowned” brand, type of panel, screen resolution and diagonal, availability SMART-TV functions and additional “proprietary” technologies. But support for current ones digital formats(from DVB-T2 to DVB S2) is most often available by default in modern devices.

How to use the built-in receiver for Tricolor TV subscribers?

As with an external set-top box, the receiver built into the TV needs to be configured. To help the subscriber, see the instructions in the corresponding section of the User Guide. First, the operator's channels are scanned using the menu. Next, you need to insert a conditional access module into a special connector on the TV (CI+ slot) with and for a certain time closed channels will be decoded.

After this, you need to register in the Tricolor TV system. You will need to indicate the ID number of the card (indicated under the barcode on one of its sides), your passport data and information about the location of installation of the equipment. All that remains is to renew your subscription for a year and enjoy watching a variety of content.

I want to say right away that I am far from an expert in satellite television. All I can boast about is this :)

Not long ago, I had to choose a TV. I chose the LG 32LN575U. Well, and of course, like probably everyone else, I read reviews, looked in online stores, and noticed in its description the presence of a digital tuner DVB-S2.

I googled a little and realized that the presence of digital DVB tuner-S2 allows you to directly connect a satellite dish to your TV and watch satellite television without receiver. If we talk in simple words, then DVB-S2 is built into the TV satellite tuner. Since I have satellite TV, I became interested.

A lot of LG TVs (and not only LG companies), equipped with a digital tuner DVB-S standard 2. This can be seen in the description of a specific model. Here is an example description of the characteristics of the LG 32LN575U TV on the official website:

After the purchase, I, of course, tested the operation of this digital satellite receiver, which is built into the TV. But everything turned out to be not as rosy as you probably think. If you watch about 70-80 “our” channels (for free) through a satellite receiver, then by simply connecting the dish to the TV, you will only be able to watch completely open, unencrypted channels. Among them, I found neither Ukrainian nor Russian (though I didn’t look very hard).

The thing is that the firmware of our satellite receivers has already been equipped with keys that allow you to watch encrypted satellite channels. On TV, these keys are, of course, not hardwired. And there is no way to somehow lead them there, or change the firmware. The companies that produce these TVs don't need this at all.

You may ask, what is this DVB-S2 for then? To watch things no one needs open channels? No, not at all. I think that all TVs that have a DVB-S2 digital tuner support CAM modules. This is a module into which a pay satellite TV card is inserted, and which in turn is inserted into the TV, into the connector PCMCIA, which looks like this:

The scheme looks like this: you immediately connect a satellite dish to the TV, buy a starter package of some satellite TV with a CAM module, and insert the card with the module into the PCMCIA connector of the TV. Run a channel search on your TV (on satellites indicated to you by your provider), and watch paid, closed channels that are opened using this very card from the provider, which is inserted into the PCMCIA connector of your TV.

This method has several significant advantages. For example, you don't need a receiver to watch satellite TV. And it turns out to be one remote control remote control, you will control the channels from the TV remote control. It's comfortable.

If you connect some kind of paid satellite TV, be sure to check with support whether their CAM modules work on TVs with DVB-S2. And you can check specifically by LG TVs, or by model.

As far as I know, for example, satellite digital television “Lybid TV” (Ukraine) works great on LG TVs, without a separate tuner. I saw a promotion in some online store where LG TVs come with a “Lybid TV” starter pack as a gift. (specifically with the CAM module, not the receiver). Their module itself is called “ EXSET CI CAM“.

Setting up satellite channels (DVB-S2) on an LG TV

I didn't connect pay television, and I don’t have a CAM module to show the setup using such an example. But, I have a regular antenna for three satellites: Amos, Sirius and Hotbird. This whole thing works, of course, through a separate receiver.

But, I connected the satellite dish directly to the TV (let me remind you, I tested it on an LG 32LN575U TV). I started searching for channels on satellites. The TV found all open channels and showed them perfectly. Now I will show everything with an example. Maybe someone will find it useful and interesting.

To connect a satellite dish, the LG TV has a special connector “ LNB Satellite IN“.

As the input source, select Satellite. Click Further.

The next stage is choosing a satellite and setting it up. You can press the button Changing satellite settings, in order to configure the satellite on which you want to search for channels. Or click Further to search for channels on an already selected satellite.

If you go to the satellite settings, a window will open with many different settings. As you can see, my signal quality and signal level are almost maximum. This means that my antenna is tuned to the selected satellite. IN in this case, This HOTBIRD 13.0E. It is possible to add a satellite, just click on the button Add satellite. Can be set DiSEqC etc.

Close this window and click Further. Select search parameters. If you don’t have a CAM module, then you can check the box next to the item Skip encrypted channels. You still won't be able to watch them. I didn't select anything else and just clicked Execute.

The satellite will begin scanning and searching for channels. Will be displayed general Statistics scanning, and the number of digital satellite channels found and the number of radio channels found.

You can stop scanning at any time by pressing the button Stop. All found channels will be saved.

As soon as the scanning is completed, or you stop the search, you will immediately proceed to viewing the found channels.

You can go back to the settings, to the Channels tab. There will be more items available there. Can be done manual setting, sort the found channels, set up a satellite, or edit the transponder.

DVB-S2 on LG TVs. How to watch satellite TV on an LG TV without a receiver (tuner)? updated: February 6, 2018 by: admin

DVB-S2 - Digital Video Broadcasting - Satellite

DVB-S2 standard. Digital TV broadcasting system.

Second generation system standard ( DVB-S2) for video broadcasting, interactive services, news gathering and other broadband satellite (SAT) applications is an addition to the widely used DVB-S SAT broadcast standard. The new standard was developed by the DVB Project (Digital Video Broadcasting Project) and was technically studied in detail by the Joint Technical Committee of the European Broadcasting Union (RBU). European Broadcasting Union), European Committee for Electrotechnical Standardization CENELEC and European Telecommunications Standards Institute (ETSI – European Telecommunications Standards).

Main characteristics of DVB-S2

DVB-S2 is a DVB specification for second-generation broadband SAT applications, developed on the basis of proven technologies DVB-S and DVB-DSNG (Digital Satellite News Gathering - digital satellite video journalism). DSNG usually refers to mobile systems for transmitting TV information from the scene, called news gathering systems. The DVB-S2 system was developed mainly for:

• standard definition TV broadcasting services (SDTV) and TV high definition(HDTV or HDTV);
• interactive services, including Internet access;
• professional applications.

Rice. 1 LDPC encoding rate

For all these applications, DVB-S2 uses latest achievements both in modulation and channel coding, which allows for increased throughput about 30% or more compared to DVB-S. A wide range of adaptive coding, modulation and error protection levels (ie coding rates) can be used within the transmitted data stream. Through the reverse channel (and this can be any physical channel, including telephone lines), informing the transmitter about the actual reception conditions, transmission parameters can be optimized for each individual user in point-to-point broadcast mode.

To achieve a compromise between radiated power and spectral efficiency, DVB-S2 provides an expanded number of coding rates (1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/ 5, 5/6, 8/9 and 9/10) with different modulation formats (QPSK, 8PSK, 16APSK and 32APSK). Thus, coding rates of 1/4, 1/3 and 2/5 were introduced to work in combination with QPSK modulation for the worst communication conditions, when the signal level is below the noise level (Fig. 1).

Fig 2.

The QPSK and 8PSK formats are offered for broadcast applications and can be used in SAT transponders operating in near-saturation mode. The 32APSK format provides for a linear mode of transponder operation and requires increased C/N values, due to which it is mainly used for professional applications, although it is the most broadband. The 16APSK format, with limited requirements for transponder linearity (special pre-emphasis schemes are used), can find a wide range of applications, including TV broadcasting. Constellations 16APSK and 32APSK are optimized for operation on a nonlinear transponder by placing points on circles (Fig. 2). However, their linear channel performance is compatible with traditional 16 QAM and 32 QAM formats, respectively.

Thanks to the choice of modulation constellation and coding rates, Ru spectrum efficiencies from 0.5 to 4.5 bps/Hz are available (see Fig. 1). DVB-S2 provides three spectrum rounding factors (roll-off factor): α = 0.35 (same as in DVB-S), α = 0.25 and α = 0.2 (approximation to a rectangular shape), which further increases throughput, although it imposes O Greater requirements for transponder linearity.

System versions DVB-S2

The DVB-S2 system can be used in “single carrier per transponder” or “multiple carrier per transponder” configurations (frequency division multiplexing is used). Obviously, with one carrier, the symbol rate Rs will correspond to the transponder bandwidth (BW=Rs). If there are several carriers, Rs will correspond to the allocated frequency range for this service. The maximum number of services provided will be limited both by the transponder band and the required speed of each of the services provided, and by the permissible level of mutual interference between adjacent carriers.

Rice. 3

Single carrier, depending on the selected encoding rate and modulation constellation, the system can operate at C/N from -2.4 dB (using QPSK 1/4) to 16 dB (using 32APSK 9/10). The calculation results are modulated on a computer (Fig. 3) for a packet error probability of 10 -7 as for DVB-S2. as well as for DVB-S/DVB-DSNG, and correspond to approximately one erroneous TS information packet per hour of TV service transmission at a speed of 5 Mbit/s. With a traditional channel with Gaussian noise, the increase in throughput is 20-35% compared to DVB-S and DVB-DSNG under the same transmission conditions or an improvement of 2...2.5 dB in reception conditions with the same Ru spectrum efficiency.

Figure 4 shows the spectral efficiency of DVB-S2 for constant SAT bandwidth BW = Rs·(1 + α ) with a Gaussian noise channel with ideal demodulation. The curves in Fig. 4 do not take into account the deterioration of performance expected on a satellite channel due to a change in the shape of the signal spectrum, due to a decrease in the roll-off factor ( α ). For DVB-DSNG accepted α = 0.35, as the worst case (possibly α = 0,25).

Rice. 4

For APSK modes (i.e. with amplitude and phase modulation), it is possible to introduce pre-emphasis on the receiving side, which allows the SAT amplifier stage to be used in a mode close to saturation, thereby increasing the output power, which is especially important for the 32 APSK mode. For such cases, special professional low-noise converters (LNCs) are used, the price of which is higher than that of household converters.

With multiple carriers In the repeater configuration, the introduction of a pre-emphasis scheme does not bring the desired result for any of the modulation schemes. Based on this, it is necessary to reduce the output power of the transmitter (i.e., operate in a quasi-linear mode), as a result of which the realized C/N value also decreases.

Reverse Compatible Modes, defined by the DVB-S2 standard in one satellite communication channel for two information TS. The first stream (high priority - HP) is compatible with both DVB-S and DVB-S2 receivers. The second stream (low priority - LP) is compatible only with DVB-S2 receivers. The presence of two streams is caused by the inevitability of a rather long transition period from DVB-S to DVB-S2 due to the large number of already used DVB-S receivers. Only at the end of the migration period, when full modulation of the DVB-S2 receivers has been observed, can the emitted signal be changed to a non-reverse direction compatible mode, thus utilizing the full potential of DVB-S2 throughput. Compatibility of reverse directions can be achieved using two technologies:

ü With multi-level modulation in asynchronous mode. This operating mode is traditional for any HF channel, which is why it is not reflected in the DVB-S2 specification. Wherein DVB-S signal transmitted to significantly more high level power compared to DVB-S2. Since the resulting combined signal is subject to significant amplitude changes in the envelope, it must be transmitted on a quasi-linear transponder, i.e. in a mode far from the saturation mode. Alternatively, with the aim best use SAT power sources, NR and LP signals can be amplified by independent satellite amplifiers (ISA) operating near saturation. The resulting signals are then summed on the downstream channel. However, this approach requires the development and launch of a new generation of satellites.

ü Hierarchical modulation, in which two HP and LP information TSs are synchronously combined at the symbol level of modulation on a non-uniform 8PSK constellation. Since the resulting signal in this case will have a quasi-constant envelope (no amplitude modulation), then it can be transmitted on a single transponder operating near the saturation mode. This solution is included in the DVB-S2 standard as an option.

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Hierarchical modulation, provides for the use of two parallel channels (Fig. 5): DVB-S and DVB-S2. On the second channel (LP – low priority), the constellation dimension increases to an uneven 8PSK (Fig. 6). Of all the possible DVB-S2 stream configurations, only the normal FEC frame configuration with 64,800 bits (720 slots × 90 bits) is allowed. The deviation angle q (Fig. 6) can be changed at the user’s request: b O higher angles θ improve C/N in relation to LP and lower C/N for HP.

For reference information, Table 1 shows the ratio of data transfer rates (in%) LP/HP. The technical report provides a formula for calculating the required C/N LP for a low priority thread:

Table 1

DVB-S coding (HP)	DVB-S2 coding (LP)
	1/4	1/3	1/2	3/5
1/2	26,6	35,7	53,7	64,6
2/3	20	26,7	40,3	48,4
3/4	17,8	23,8	35,8	43
5/6	16	21,4	32,2	38,7
7/8	15,2	20,4	30,7	36,9

table 2

Mode	Spectral efficiency	Ideal Es/No (dB) for a 64,800-bit FEC frame
QPSK 1/4	0,49	-2,35
QPSK 1/3	0,66	-1,24
QPSK 2/5	0,79	-0,3
QPSK 1/2	0,99	1
QPSK 3/5	1,19	2,23
QPSK 2/3	1,32	3,1
QPSK 3/4	1,49	4,03
QPSK 4/5	1,59	4,68
QPSK 5/6	1,65	5,18
QPSK 8/9	1,77	6,2
QPSK 9/10	1,79	6,42
8PSK 3/5	1,78	5,5
8PSK 2/3	1,98	6,62
8PSK 3/4	2,23	7,91
8PSK 5/6	2,48	9,35
8PSK 8/9	2,65	10,69
8PSK 9/10	2,68	10,98
16APSK 2/3	2,64	8,97
16APSK 3/4	2,97	10,21
16APSK 4/5	3,17	11,03
16APSK 5/6	3,3	11,61
16APSK 8/9	3,52	12,89
16APSK 9/10	3,57	13,13
32APSK 3/4	3,7	12,73
32APSK 4/5	3,95	13,64
32APSK 5/6	4,12	14,28
32APSK 8/9	4,4	15,69
32APSK 9/10	4,45	16,05

Figure 7 shows the required C/N for HP and LP flows depending on the angle θ for non-uniform 8PSK constellation with various speeds coding. The short dots in Fig. 7 indicate the boundaries of the implementation of the reverse channel mode. In fact, with increasing angle θ , the constellation becomes more similar to standard 8PSK (Fig. 2). The above calculations were performed for the worst case ( α = 0.2) at symbol rate at 20 Mbaud.

Rice. 7

To interested readers, our company “Kontur-M” will send a program (Excel) for calculating C/N and digital stream speeds.

Adaptive Coding and Modulation (ACM) is the highlight of DVB-S2. This operating mode is applicable for point-to-point applications (point-to-point applications, for example, IP broadcasting to one address or DSNG). The essence of the AFM mode is that depending on the signal reception (for example, the presence of rain), the operating mode of the DVB-S2 modulator changes, i.e. The encoding rate (SR) and modulation format change, as a result of which the required C/N requirement from the subscriber also changes. Simply put, the AFM mode allows you to achieve maximum speed digital stream for any weather conditions. The C/N threshold is set on the receiving side by the consumer of this service (Fig. 8) by continuously measuring C/N + I (carrier/noise ratio + interference) and sending the measured value to the broadcast terrestrial transmitting station via a reverse channel. In this case, the coding and modulation parameters can change from frame to frame.

Rice. 8

To avoid overflow of received information during poor reception conditions (SR decreases), a rate control mechanism is installed information flows. In other words, automatic adaptation is carried out useful traffic to the physical capabilities of the channel. A critical issue in AFM systems is the time delay in the adaptation loop. physical level, since this is directly related to system opportunity tracking channel state changes. Thus, significant time delays can lead to either the loss of some frames with a sharp deterioration in signal transmission (bad weather, usually no more than 1 dB per second) or loss of potential channel capacity. A deliberate increase in the protective threshold of the AFM system (by analogy with AGC) will lead to the economic inexpediency of its use.

Note that the mechanism of operation of the ACM system is quite complex, especially at the subsystem level for supporting ACM with MPEG-TS (for example, multiplexing audio, video, multimedia and IP streams with CBR and VBR), where zero packets are added and removed to form CBR ( TS with constant speed). But, despite all the complexity of the ACM system, depending on the parameters of the communication line and its configuration, it allows you to increase the throughput up to 200% in comparison with SCM (constancy of coding and modulation).

Development digital technologies cannot but influence the search for new standards in the same SAT broadcasting. This is how the new DVB S2 standard appeared to the world. It is worth mentioning what the DVB S2 standard is.

The abbreviation DVB-S2 is, in some ways, an updated digital television broadcast format. This format replaced its predecessor - DVB-S. Distinctive features The two formats are, in fact, hidden in many ways, but many of the changes are not clear to the average person. If we convey the essence of the new standard to the user in simple language, then the main innovations can be listed as follows:

• The new standard supports high-quality modern video decks;
• The format is endowed with increased connection speed, which allows you to reproduce high-resolution images;
• The new standard is somewhat more reliable regarding the plan for transmitting the broadcast signal from the source to the end user;
• Many innovations have been joined by direct access to Internet networks, as well as a method of electronic news collection.

It's worth mentioning that new format DVB-S2 is compatible with the previous technology - DVB-S, which does not mean a complete abandonment of the old and understandable.

DVB S2 standard: the goal of developing new technology

The new satellite standard DVB S2 has successfully coped with the task of covering the shortcomings of previous standards: low speeds DVB-S standard and low distortion SAT standard.

First of all, the emergence of DVB-S2 technology was spurred by the planned mass launch of HDTV, which required the development of channel coding formats that greater efficiency use frequency resources of satellite DVB-S2.

At the stage typical developments The operation of the spacecraft-band receiving systems, which were influenced by atmospheric conditions, in particular moisture, was no longer satisfactory - it was necessary to strengthen the protection against interference.

Interactive, addressable satellite networks still required more transport resources. To optimize the use of resources, it is necessary to adapt the parameters of each address stream to the conditions of a specific recipient. But previous standards did not provide this. But support for the DVB-S2 format made it possible to transmit more on a standard channel useful information for different services that are broadcast on the same channel. In addition, the satellite tuner fully supported the compatibility of the old and new standards.

Satellite broadcasting DVB-S2: technology characteristics

This situation served as the basis for the creation universal standard DVB-S2. On its basis, networks for distribution are provided:

• on the network for professional awareness – support for digital TV transmission from studio to studio, distribution of signals to on-air repeaters, thanks to satellite communications for delivery high-quality image on TV;
• The DVB-S2 standard is conveniently used to support the formation of a network for data transmission or the creation of IP trunks.

The incompatibility of the mechanisms included in the DVB-S2 receiver turned out to be incompatible with some old standards. Then the developers introduced two new modes into the standard. The first, which is downward compatible, but not efficient enough, the second, although it uses all the new features, does not allow the use of a DVB-S tuner. The first is best used when providing traditional services, the second - for use in professional networks.

One standard - different schemes

This provision of the new DVB-S2 standard has four possible schemes modulation. The first two, QPSK and PSK, are used in broadcast networks. But the speed schemes 16 APSK 32 APSK belong to professional networks, where weaker ground-based transmitters are used.

To protect against interference in this standard, as before, use data interleaving and two-level code overlay for direct correction. In most cases, code mode allows you to fix up to 12 errors, and in other cases, 8 or 10 errors. It also depends on quality level, which the receiver provides. Support for a normal image on the TV depends on this. At the same time, each tuner used must correspond to its characteristics, which should provide support in choosing.

The satellite receiver, built in many cases into the TV, DVB-S2, provides for packetization of the stream at two levels, through the introduction to solve the synchronization problem when the receiving system is supported in working conditions with low level signal to noise ratio. The tuner must be adjusted according to satellite tuning according to the DVB-S2 standard. The TV's support for clear images depends on how well the receiver complies with the standard.

The latest generations of devices have a built-in satellite tuner of the DVB-S2 standard in the TV. It will receive a satellite signal, but the receiver and antenna itself are not enough, because the TV does not have a decoder, and most satellite channels are encrypted. Clear reception can be supported by installing a decoder. Therefore, do not rush to believe sellers that a receiver installed on the TV will solve the problem.

Digital DVB-S2 tuner built into the TV

You also need to know what standard you will be watching; this is what the TV receiver should have, and a new generation receiver is desirable. Here we need support and good advice specialist regarding what the receiver should be like. But it will not be superfluous to know that basically the receiver should be of the DVB-S2 standard and therefore the receiver of another may not be similar.

There can often be confusion when purchasing a TV. So, a completely different tuner with a typical name may be built into the TV, the connection of which with the satellite has nothing in common:

So in abbreviations it is worth distinguishing only one letter, which is endowed with a fundamental meaning:

• The letter T stands for terrestrial TV;
• C – cable;
• S – satellite.

So the installation work regarding the installation of antenna equipment is virtually indistinguishable from standard installation when a satellite external receiver is used. TVs with a built-in satellite receiver support the DiSEqC 1.0 protocol, which means reception satellite signal from at least four satellites, using DiSEqC 4x1 switches.

Connecting and setting up DVB-S2 signal reception

As an example for connecting and setting the standard in question, we will use an LG TV (model 32LN575U), which has a built-in DVB-S2 tuner. So in retail sales DVB S2 USB tuners are also available, easy to use on mobile devices.

In fact, any TV that supports the DVB-S2 standard also supports the module itself, into which a pay-TV access card is inserted.

Likewise, when using a regular satellite dish, you should connect it to the TV into a special connector.

As a satellite input source, you should select “Satellite” and click “Next”.

The next step is to select a satellite and configure its display. You can click on the “Change satellite settings” section in order to make settings for the satellite on which you want to search for TV channels. But it is also permissible to click “Next” for those purposes in order to search for TV channels on an already installed satellite.

I previously reviewed the Android TV box VideoStrong K1 Plus, but the company also has another model with exactly the same name. This is a little confusing, but nevertheless, since I know the version of the device, I installed it on it latest firmware, I started playing with it and today I will explain how to set up a DTV application for satellite and digital terrestrial television.

Equipment setup and DTV application

The first step is to connect satellite dish and an internal or external TV antenna into the device and possibly a hard USB disk if you want to use PVR features.

Now go to the application list and launch the DTV application or press the DTV button on the remote control.

Each time you launch the application you will be asked to select DVBT2 or DVBS2 and if you want to switch between one or the other you will need to exit the application and restart it or press the DTV button.

DVB-T2 setup

I'll start with DVB-T2. The first time, the application will ask if you want to scan channels, after agreeing you will be presented with an installation menu.

Now select “Auto Search” ( automatic search), scanning should begin.

I got 22 channels and not a single radio station. Deal done, this part was easy.

However, if you are missing some channels, you may need to change your country/region because the default is Europe. Press the menu key on the remote control, select DTV preference->General settings->Area Setting.

Select your region or country from a list that includes Europe, Singapore, Colombia, Russia, Thailand, Germany, France, Spain, Italy, Sweden, Holland, England, Australia, New Zealand and Taiwan. You will have to repeat the scan if you change country. I did this with Thailand and got 30 channels instead of 22 channels.

Setting up DVB-S2

Setting up satellite digital television begins in almost the same way, with the exception of the installation menu, which is slightly different.

Enter the list of satellites and select the satellite, in my case Thaicom 2.

You can select several satellites if you need it, and/or your satellite antenna has a drive. you can find full list pre-installed satellites in the video at the end of this tutorial. You can also add your own satellites, edit and delete existing ones using the colored buttons on the remote control. Now go back and select Multi Scan, Make sure that green tick displayed on the selected satellite line and press the blue button on the remote control.

Change scan type to Blind Scan ( blind scanning), at point Channel Type in select FTA only(Free-to-Air), in the last item select All (all) and press the OK button to start scanning.

Once everything is done, you should receive a list of TV channels and radio stations. In the end I received 55 TV channels and 5 radio stations via Thaicom 2 satellite.

The 5 minute video below shows all the steps I went through to set up both the DVB-T2 and DVB-S2 tuners.

Videostrong K1 Plus with DVB-T2/DVB-S2 combo tuner is only shown on Alibaba and is not available for retail. A version without a tuner is on sale for $36.89.