According to the government's decision in 2019 to Russian switch to digital broadcasting. Analog TV on your TV will disappear. What are the advantages of things to come for millions of viewers, look at our article.
The advantages of digital television
The content of the article
- The advantages of digital television
- How do you know if your TV supports digital TV
- As indicated
The digital waveform data is broadcast as a series of "0" and "1" and video MPEG 4 format. Pluses digital ester:
- Image and surround sound quality.
- The ability to view 3D-TV three-dimensional format.
- The complete absence of noise.
- Archive and record TV programs, pause and rewind.
- Subtitle support.
- Information on the schedule and time of transmission.
One frequency band can support up to 10 channels, due to the small signal range. For comparison, each frequency analog comprises only one TV channel.
The number of frequency remains the same, despite the increase in the number of programs.
When identical coverage area of analog device, digital transmitter consumes minimum power.
ON A NOTE. Analog broadcasts allow broadcast from 1 to 2 channels such as in rural areas. The new TV will transmit nationwide package of 20 programs with high quality picture and sound, and three radio stations.
How do you know if your TV supports digital TV
TV models from different years and have a variety of TV tuner (integrated device for receiving a signal). To find out what kind of coverage you get, there are several ways.
Look at the settings on your device in the operating instructions. If the manual is lost, pay attention to the letters on the panel next to the tuner. Caption «digital input» means receiving the digital signal.
IMPORTANT. The possibility of adoption of broadcast is not enough, see the next section.
Use internet search engine and type in the make and series. On specialized sites to easily find relevant information.
Check the device settings. For this:
- TV menu activate automatic channel search,
- or try a manual setup, specify the frequency 546 (the first ten channels) and 498 (second dozen).
That the consumer can easily understand what signal it receives directly to the TV, in many Russian regions of large analog channels ( "Russia 1", "NTV" and others) placed next to the application icon "A" letter. If you see it on the screen, then you have the appropriate broadcast mode.
Models produced since 2013, are guaranteed to support the new form of broadcasting.
ON A NOTE. If you have an analog device, there is no need to spend money on an expensive TV set to watch the figure. You can purchase an external tuner, its market price ranges from 800 to 1200 rubles.
As indicated
There are international standards, according to which the notation form of a digital signal, there are only three:
- European - DVB,
- Asian - ISDB,
- American ATSC.
Directly to the European DVB protocol works in Russia. Depending on the method of transmission of broadcast formats are distinguished:
- DVB-T (T2), can receive terrestrial TV;
- DVB-S (S2), receives satellite TV;
- DVB-C (C2) -cable TV;
- DVB-H (SH) - mobile TV.
Number 2 indicates a second, advanced modification of the standard.
For our situation important format DVB- T2, since the new scheme of broadcasting was he chosen as national. The previous version of DVB-T is hopelessly outdated and will not be used. The updated standard has a high level signal.
IMPORTANT. Besides having a digital tuner, corresponding to the required external antenna. It should take decimeter band (UHF). It will need to accurately aim to produce high-quality translation.
We hope that our article has helped you understand the features of digital broadcasting. Good luck!