Television is constantly evolving. At the moment, for the convenience of users, a wide variety of standards have been created. One of the most popular is the DVB-C format. What's on TV?
The main TV standards are as follows:
- DVB is the main digital television format in Europe;
- ISDB - distributed in Japan;
- ATSC - in the Americas;
- DVB-C is the main cable television standard.
DVB-C standard
What's on TV? To start working with this standard, you need to insert a card issued by your provider into a special slot on the tuner. This format is based on the coding of a changing image, and it also has audio in MPEG-2 format. The DVB-C receiver only works with a cable connection. In other words, it is necessary to call the master to carry outcable. The need for it is one of the most important drawbacks of this type of standard, because it is impossible to run a cable into some houses, which means that it is not possible to use the DVB-C television standard. What is it in TV, how does it differ from other standards?
Modern television technologies
Many modern TV broadcast devices have built-in DVB-C support. What's on TV? Devices in this case mean not only TVs, but also various receivers, set-top boxes and tuners. There are several reasons for this:
- Most devices connect to cable without any problems;
- there are many different options for DVB-C connectivity;
- connection cost is relatively inexpensive;
- easy to improve the quality of the resulting image;
- it's easy to provide your TV with mpeg support.
Modern set-top boxes mostly support DVB-C, because it is much easier and more profitable for the provider to set up this particular type of broadcast.
Due to this, the demand for equipment with DVB-C support is growing. The manufacturer seeks to win the favor of consumers by providing them with the opportunity to purchase equipment with support for DVB-C and mpeg4.
DVB-C is the most popular in cities. This is due to the fact that cable TV connection is inexpensive, nottakes a lot of time and in most cases can be connected by the same provider that provides the user with the Internet.
A variation of the DVB-C2 standard
This is the second generation of the above standard. It differs from the first one in that when it is connected, cheaper technologies are used, but not inferior in quality to their predecessors. Single carrier has been replaced by OFDM technology. It gives the TV more flexibility and prevents interference.
DVB-S
The difference of this standard is that communication is via satellite. That is, for television to work, it is not a cable that is required, but an antenna and a receiver. This method of broadcasting is the fastest of all described, and also provides high quality image and sound. If you install a combo HD receiver with two tuners for DVB-S2, you will get high quality images that you usually find in movie theaters in your home.
How to connect DVB-C
If you have a modern TV, then, most likely, DVB-C support is already built into it and there is a CAM module. Then you just have to purchase a module and an access card from the provider, and then connect everything to your device.
If your model does not support DVB-C, then you need to purchase a tuner with this technology. At the moment there are a lot of them, so it won't take you long to search.
If you have a DVB-C cable TV receiver and a special card reader, you can enjoy this type of broadcast even from yourpersonal computer. You only need to pay for a subscription, which is affordable considering the number of channels you get in return.
DVB-C technology is of interest primarily to users who already have cable TV at their disposal, but only in analog format. In this case, you do not need to call the installation wizard.
Many providers provide big discounts for connecting this type of broadcasting, because the procedure does not require special costs, and the technology itself is in high demand among consumers. If you already have cable TV, then you should talk to your operator about connecting DVB-C digital tariffs.
Many modern LED TVs with DVB-C T2 have special connectors that greatly simplify the procedure for connecting the format due to the fact that the cable can be connected directly to the device without using additional tuners and set-top boxes.
When connecting the cable to the TV, all that remains is to set up the broadcast, and this is a very simple and quick procedure.
On average, when you connect to TV broadcasting in DVB-C format, you get more than a hundred different channels, among which everyone will find something interesting for themselves. Devices can increase the amount of resources provided when retuning broadcasts to other frequencies, but this is possible only with the permission of the provider, because he controls the content provided to users.
How to connect them?
If you have already activated the DVB-C tuner for your TV and completed all other settings, you can start searching for channels. To do this, you need to open the menu and find the "Channel settings" function. The name of the option may differ for different TV models.
Next, the menu item "Search for channels", followed by "Automatic search". Run an automatic channel search and the unit will find all available in the area. It's so easy to connect and set up your digital TV and enjoy your favorite movies and TV shows.
What are the reviews saying?
DVB-C digital cable TV format provides high quality picture and sound. It is more stable and less prone to interference than analog. Also a big advantage is the availability of connectivity. The main condition is the presence in your home of a provider that provides cable TV and Internet services and cable.
Digital signal transmission via cable has a number of advantages over satellite - no "snow", noise and cod. And MPEG-2, MPEG-4 encoding and compression standards for video and audio data make it possible to broadcast HD and SD formats.
In order to get a quality TV product, you just need to contact your provider and connect to a digital data transmission service. Next, install and connect a DVB TV tuner. Reviews say that all channels work well anduninterrupted.
It is also possible to watch digital TV on your personal computer. This requires a DVB-C tuner and a card reader for a conditional access card. Unfortunately, the option of digital TV with a DVB-C tuner is not available to owners of TV antennas.
For regular resolution television, the data transfer rate is no more than 15 Mbps, and for digital format it is several times more - from 60 to 80 Mbps. If you look at all DVB-C digital cable receivers in most stores with prices and reviews about them, this technology seems even more attractive. The cost of such devices starts from a thousand rubles, and the features offered are very impressive.
Flaws of the standard
Of the minuses of this method of receiving a signal, one can single out a paid connection and the need for cable television. But if your home has one, then you have the opportunity to become a member of a digital broadcasting project, simply without leaving your home, and watch any television product in high quality image and sound.
Differences between DVB-T and DVB-C
Differences between different types of DVB standard have already been discussed above. If you don't have access to a cable, you can use a DVB-S connection. Moreover, modern LG TVs with DVB-C S2 are available for sale today. But can it be compared to a digital format?
The DVB-T standard guarantees high quality signal reception. He is able not to perceive reflectedsignals. To increase resistance to various interferences, channel coding is used. This standard conducts exactly the same broadcast as in the case of analog television, but the transmission format and technologies use others. Terrestrial DVB-T is completely different from satellite DVB-S or cable DVB-C. The decoders have completely different frequency channels and modulation methods, so they are not compatible with each other.
Digital TV is broadcast in the decimeter spectrum. Therefore, the quality of signal reception is affected by such indicators as: the relief of the territory, the openness of the area to the transmitter and the compactness of the building.
What are the advantages of digital TV:
- High quality video, large screen viewing.
- Excellent sound quality.
- Huge selection of channels.
- Connecting parental controls.
Details on each aspect
The main advantage that this format offers is the high quality of the video. You can forget about screen problems. With digital television, you will never encounter such effects as splitting the picture, a snowy screen, etc. All these effects are only available with poor quality analog signals. Digital, on the other hand, is arranged in this way: either the signal is received in high quality, or it is not received at all.
There are many cases where the broadcast is in stereo instead of mono. This means that there is even more detail and separation of the sound. The DVB standard does not distort or compress sounds. Using a high-speed data stream makes it possible to save traffic without reducing quality.
This technology allows you to transmit an audio track, which is divided into a certain number of channels. DVB format can also be used by home theater owners.
There is another benefit to using digital television. It supports a huge number of channels. Analog subscribers do not have diversity either in direction or in subject matter. You will have access to news, educational, scientific, music, sports and other categories of channels at your own discretion. It all depends on your personal interests.
The DVB standard has a parental control connection function. It allows you to choose exactly this method of broadcasting. You can block access to certain channels that you don't want your children to see by simply putting a special password on them. Then no one but you can turn them on.
This method also has disadvantages. To use DVB successfully, you need to fulfill the following conditions:
- Find a secure provider.
- Make sure the equipment is working.
- Carry out all settings carefully and correctly.
At first glance it may seem easy. But in the case of unreliable equipment, this format will cause you a lot of inconvenience. It can be damaged during strong winds, and you may be left without a TV. To identify a quality provider, you need to study the reviews of all availablein your house. In addition, you will need to purchase the latest LG TV with DVB-C T2.
The lack of 24/7 support from most providers is also one of the drawbacks. For example, due to a night thunderstorm, the equipment on the roof of the house is out of order. Although it is possible to restore work very quickly, you will not be able to call a specialist at night or on a weekend.
