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DAB

1、 What is DAB
Digital Audio Broadcasting (DAB) is the third generation of broadcasting after traditional analog broadcasting such as AM and FM. Its emergence is a revolution in broadcasting technology. Digital audio broadcasting not only transmits audio, but also related information (such as road conditions, weather, news, etc.), and even images. In addition to strong anti-interference and anti clutter capabilities, the attenuation of transmitted signals is also low, allowing digital broadcasting stations to have longer transmission distances and wider coverage.

The biggest difference between DAB and traditional broadcasting (FM, AM) is that DAB not only has the transmission quality and technology of CD sound quality, but also has the ability to receive multimedia information, including text, data, images, videos, and even real-time information updates. Therefore, the application of DAB is not limited to audio broadcasting services, but more importantly, data broadcasting services.


2、 Saudi Arabia and UAE's requirements for DAB+

Saudi Arabia has legislated that from January 2021, household receivers, portable receivers, and car receivers must be equipped with DAB+, while the United Arab Emirates released the standard specification USE for AM/FM/DAB+radio receivers in 2018 S 5201: In 2018, it was stipulated that from 2020 onwards, the proportion of vehicles sold to the country with DAB receivers should not be less than 50%, and from 2024 onwards, 100% of vehicles sold to the country should have DAB receivers.


3、 DAB+certification testing project
Standard:
1. Gulf countries GSO2693:2022
2. Saudi Arabia SASO2938:2019
3. United Arab Emirates S5021:2018


Test project:

1.General requirements
2.RF requirements
3.DAB+ channel decoding requirements
4.Audio decoding requirements
5.Functionality and user interface
6.Announcement signalling and switching, service labels
4、 DAB+certification process
1. Apply for certification: submit the application form and relevant materials;
2. Test preparation: Prepare testing equipment and testing environment;
3. Test execution: Complete relevant test projects;
4. Certification review: Review test results and related materials;
5. Submit for certification: issue TDRA certificate;
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