1. Why did we switch from analog to digital tv?
1.1 Why was analog tv shut down?
2. How to change analog tv to digital?
2.1 Based on existing equipment
2.2.What equipment is required to complete the upgrade?
2.3 What functions need to be implemented?
3. When did analog TV go away?
4. TV analog to digital South Africa
the picture quality is too poor
and the signal is unstable, TV station needs to be shut down for maintenance
The reason why analog TV opportunities are being eliminated has a lot to do with the evolution of transmission technology.
Analog signals refer to information expressed by a continuously changing physical quantity, and the amplitude, frequency or phase of the signal will change continuously over time.
Such as temperature, humidity, current, voltage, etc. These physical quantities can have infinitely many different values within a certain time range, and they can all be represented by analog signals.
In the process of analog signal transmission, it is necessary to convert the information signal into an almost "identical" fluctuating electrical signal (so it is called an analog signal), and then transmit it by wired or wireless means. After the electrical signal is received, it can be passed through the receiving device. Reverted to an information signal.
During the process, the farther the transmission distance is, the weaker the electrical signal becomes. Coupled with the noise interference in the line, the signal quality will be greatly reduced.
Digital TV has stable signal output, high resolution, and clear picture quality, reaching 4K. It can achieve up to 8K 60Hz/4K 120Hz picture quality display, and also supports DTS sound effects and Dolby Atmos.
Starting from the source, the digital TV system encodes every pixel of the image and every syllable of the audio through binary numbers. After decoding, the image and sound can be restored.
Essentially, digital signals are capable of transmitting more information than analog signals, given their limited bandwidth.
Higher transmission efficiency and spectrum utilization. The more information transmitted, the better the sound and picture quality of the TV. An 8MHz bandwidth terrestrial analog TV channel can only transmit one program, while terrestrial digital TV adopts digital compression technology, and can transmit multiple sets of radio and television programs under the same 8MHz bandwidth.
Digital TV uses data compression technology to realize signal transmission and restores images and audio through the decoding capability of the TV chip. The whole process can greatly reduce signal interference and loss.
Furthermore, when the TV chip is combined with AI technology, digital TV can achieve a qualitative leap in the viewing experience and can realize AI-PQ image quality enhancement, AI SR super resolution, AI intelligent voice function and so on.
We can use receivers as input, and connect av to ip encoder converting existing analog signals to digital TS streaming.
32Av to ip encoder one set can output 32 channels
16 in 1 IP QAM one set( support 16 RF carries, and max to 100 channels)
CAS/SMS one set
IC card( Manage and control STB with CAS software)
If you need to manage our subscribers and offer real pay TV, pay-per-view, and pay-per-channel functions, a CAS system(software) and SMS(charging system) are needed, while Ads system software is for adding value.
Does analogue TV still work in South Africa?
In South Africa, the government issued a communiqué announcing that "September 30, 2022, is the deadline for South Africa to completely shut down analog TV signals and apply for registration of digital TV set-top boxes for local families."
In the USA, the transition to digital television was set back three times: first to December 31, 2008, then to February 17, 2009, and then finally to June 12, 2009. All U.S. full-power analog TV broadcasts were required by law to end on June 12, 2009.
In China, the State Administration of Radio and Television issued the "Notice on Relevant Work Arrangements for Shutting Down Terrestrial Analog TV According to the Plan" in 2020.
Terrestrial analog signals across the country have been shut down before December 31, and it has been replaced by popular digital television.
When did analog tv shutdown for all countries in the world?
Indonesia Analog Switch-Off is 2015.
Laso Analog Switch-Off is in 2015.
Philippines Analog Switch-Off is 2015.
Sri Lanka Analog Switch-Off is 2017.
Thailand Analog Switch-Off is 2015.
Armenia Analog Switch-Off is 2015.
Bulgaria Analog Switch-Off is 2015.
Cyprus Analog Switch-Off is 2011.
Montenegro Analog Switch-Off is 2012.
Romania Analog Switch-Off is 2013.
Serbia Analog Switch-Off is 2012.
Canada Analog Switch-Off is 2011.
Costa Rica Analog Switch-Off is 2018.
Dominican Republic Analog Switch-Off is 2015.
EI Salvador Analog Switch-Off is during 2012-2014.
Honduras Analog Switch-Off is during 2017-2022.
Argentina Analog Switch-Off is 2019.
Bolivia Analog Switch-Off is 2024.
Chile Analog Switch-Off is 2017.
Uruguay Analog Switch-Off is during 2014-2015.
Venezuela Analog Switch-Off is 2018.
