1、Introduction
On April 30, 2025, the Standardization Administration of China officially issued the mandatory national standard project plan for On-board Radio Broadcast Receiving System (Project No.: 20251024-Q-339), to be drafted by the Ministry of Industry and Information Technology and the National Radio and Television Administration. This standard brings the on-board radio broadcast receiving system (including the on-board radio broadcast receiving terminal, antenna, and its wiring harness) into the scope of mandatory certification, marking the upgrade of on-board AM/FM broadcast reception capability from "recommended configuration" to "mandatory standard configuration."
As an important component of the national basic public service, wireless broadcasting features core characteristics of public welfare, universality, and emergency response. In sudden emergency situations, when cellular base stations are damaged by natural disasters, FM broadcast transmitters with a coverage radius of over 100 kilometers and medium-wave stations with a transmission distance of thousands of kilometers can ensure the timely delivery of authoritative emergency information. The introduction of the mandatory national standard is an institutional guarantee for this public safety requirement.
To address the above mandatory national standard testing requirements, Doewe Technology provides two flexibly configured test solutions, targeting high-end R&D and efficient production-line verification respectively. Both solutions can fully cover the AM/FM broadcast functional tests, performance tests, and audio analysis requirements specified in the mandatory national standard, and can be smoothly upgraded later to extend digital broadcast test capabilities.
2、Test System Description
To meet the testing requirements of the new-generation on-board radio broadcast receiving system at different stages such as R&D verification, performance testing, and production certification, Doewe Technology provides two test solutions, targeting high-end R&D and efficient verification application scenarios respectively. Both solutions adopt a dual-signal-source architecture and complete comprehensive performance verification of the DUT (device under test) on-board radio broadcast receiving system through standard RF excitation and audio response analysis.
For the R&D stage, the test system needs to have higher flexibility, professional analysis capabilities, and continuous scalability to meet product development, performance optimization, and problem analysis requirements; while for production verification, the test system focuses more on integration, test efficiency, and operational convenience to meet the rapid verification of large-volume products. Therefore, this solution has formed two test architectures with different focuses for these two typical application scenarios.
2.1 Solution 1: RWC2010C + Audio Analyzer A8 — High-End R&D Test Solution
Solution 1 uses two RWC2010C units as RF signal sources, combined with the ABTEC A8 audio analyzer to build a discrete test system. The system mainly consists of a standard excitation part and a response test part: the two RWC2010 units are used to generate standard test signals and interference signals respectively, applying corresponding RF excitation to the DUT on-board radio broadcast receiving system; after the DUT completes signal reception and demodulation and outputs the audio signal, the ABTEC A8 performs professional analysis of the audio response, thereby forming a complete "RF excitation — on-board receiver reception — audio response — performance analysis" test chain.
Fig.1 Solution 1 RWC2010C + A8 System Test Block Diagram
The discrete architecture independently configures RF signal generation and professional audio analysis, providing R&D personnel with a more flexible test environment. By independently adjusting RF test conditions and combining with professional audio analysis results, the receiving performance of the on-board radio broadcast receiving system can be deeply verified, providing objective and quantitative test basis for product R&D, performance optimization, and problem analysis.
At the same time, the RWC2010C itself has comprehensive test capabilities covering both analog and digital broadcasting. In addition to AM, FM, and RDS, it also supports digital broadcast standards such as DAB, DAB+, DRM30, and DRM+, and supports ETI/MDI file playback, multiplex configuration, and other functions. Therefore, on the basis of completing the current mandatory standard tests for the on-board radio broadcast receiving system, the test platform can be further expanded for digital broadcast test capabilities according to future product R&D needs, achieving continuous upgrading of the test system.
The core value of Solution 1 lies in "flexibility, professionalism, and scalability," making it more suitable as a long-term test platform for the R&D laboratory of on-board radio broadcast receiving systems, meeting continuous needs from traditional AM/FM performance verification to future digital broadcast R&D testing.
2.2 Solution 2: RWC2010M — Efficient Verification Test Solution
Solution 2 uses two RWC2010M units to build an integrated test system, integrating broadcast RF signal generation and audio analysis functions into the same test platform. The two RWC2010 units are responsible for generating standard test signals and interference signals respectively. After the DUT on-board radio broadcast receiving system receives and outputs audio, the built-in independent audio analysis function of the RWC2010M can directly test the frequency, SINAD, SNR, THD, and other indicators of the output audio, and can display the audio waveform and spectrum.
Fig.2 Solution 2 RWC2010M System Test Block Diagram
Compared with the discrete test solution using an independent audio analyzer, the RWC2010M integrates signal generation and audio analysis in the same device, effectively reducing external test equipment and connection links, and simplifying test system setup and operation procedures. In application scenarios where test items are relatively fixed and rapid product determination is required, the integrated architecture can further improve test efficiency and on-site ease of use, making it more suitable for production testing, quality verification, and batch verification of on-board radio broadcast receiving systems.
In addition, the RWC2010M supports remote control and parameter configuration through PC software, and can save test configurations for quick recall. On this basis, it can be further upgraded with automated test functions according to the specific test requirements of the new-generation on-board radio broadcast receiving system mandatory standard, unifying test condition setting, test execution, index determination, and result recording processes, achieving the upgrade from manual testing to standardized and automated testing.
Solution 2 is "integrated, efficient, and easy to automate," making it more suitable for building a rapid test platform oriented to the production line, helping customers improve the test efficiency of batch products while ensuring test coverage capability.
3、Test Standards and Index Coverage
Aiming at the test requirements of the new-generation on-board radio broadcast receiving system mandatory national standard, this solution configures the test system around the function and performance indicators of the on-board AM/FM broadcast receiving system, covering the main performance test items of the FM and AM bands. Through standard RF signal excitation and on-board receiver audio output analysis, objective evaluation is conducted on the receiving sensitivity, selectivity, signal-to-noise ratio, distortion, and audio performance of the DUT system, providing a complete test basis for product R&D verification, quality inspection, and standard compliance testing.
3.1 FM Band Performance Test Indicators
FM band testing covers receiving frequency range, noise-limited sensitivity, signal-to-noise ratio, two-signal selectivity, AM suppression ratio, as well as audio distortion, frequency response, stereo performance, and other main indicators. The specific test items and technical requirements are as follows.
3.2 AM Band Performance Test Indicators
AM band testing covers receiving frequency range, noise-limited sensitivity, signal-to-noise ratio, selectivity, automatic gain control, and distortion, and other main indicators. The specific test items and technical requirements are as follows.
4、Core Product Parameters
To meet the testing requirements of the on-board broadcast receiving system at different stages such as R&D verification, performance evaluation, production testing, and certification testing, this solution selects RWC2010C, RWC2010M, and ABTEC A8/A6 as core test equipment according to different application scenarios, targeting high-flexibility R&D testing and high-integration production testing scenarios respectively, to build a complete on-board broadcast test capability.
4.1 RWC2010C
The RWC2010C is a digital/analog integrated broadcast test platform, supporting multiple broadcast standards and service signal configurations, and can provide flexible and stable standard test signals for on-board broadcast receiving systems.
RWC2010C
Core Features:
- Digital/analog broadcast integrated testing
- Supports multiple broadcast standards and service tests
- Flexible configuration of signal parameters and service information
Core Parameters:
4.2 Audio Analyzer ABTEC A8
The ABTEC A8 is a professional audio analysis device that can cooperate with the RWC2010C to complete audio performance testing and analysis of on-board broadcast receiving systems, meeting the audio index testing requirements of R&D and certification testing.
Audio Analyzer ABTEC A8
Core Features：
- Professional audio performance analysis
- Supports multiple audio test indicators
- Suitable for R&D verification testing
Core Parameters：
4.3 RWC2010M
The RWC2010M is a compact, integrated test platform oriented to on-board broadcast testing, integrating broadcast signal generation and Audio Analyzer audio analysis functions, which can effectively simplify test system setup and improve test efficiency.
RWC2010M
Core Features:
- Compact, integrated design
- Built-in Audio Analyzer
- Integrated RF signal generation and audio analysis
- Suitable for high-efficiency test scenarios such as production and verification
Core Parameters:
5、Conclusion
With the development of automotive intelligence and on-board entertainment systems, on-board broadcast testing puts forward higher requirements for test performance, flexibility, and efficiency. For R&D verification, the RWC2010C + ABTEC A8 combines high flexibility, high performance, and scalability to meet diversified and in-depth test requirements; for production testing, the RWC2010M integrates broadcast signal generation and audio analysis modules to simplify the test system and improve test efficiency and consistency.
Relying on products such as the RWC2010C/M and ABTEC A8, Doewe Technology is committed to providing professional, efficient, and reliable test support for automotive electronics and on-board entertainment systems, covering the full lifecycle test requirements of the on-board radio broadcast receiving system from R&D verification to production certification.
For more product details, please visit: https://www.doewe.com，Tel：010-64327909.