According to the National Radio and Television Administration, on May 17, the Ministry of Industry and Information Technology, the National Radio and Television Administration, and the State Administration for Market Regulation jointly held a conference on in-vehicle audio-video management. The conference summarized the implementation status by automobile manufacturers since the three departments issued the "Notice on Further Strengthening In-Vehicle Audio-Video Management" last year. Work arrangements were made to further strengthen the management of in-vehicle wireless broadcast reception, promote wireless broadcast reception modules as standard vehicle equipment—equipped as required and equipped comprehensively—and regulate in-vehicle internet audio-video services.
Representatives from 31 major automobile manufacturers nationwide attended this conference. Their participation not only provided rich practical experience and industry perspectives but also offered strong support and guarantees for future work. Simultaneously, as a high-tech enterprise relentlessly pursuing innovation in test and measurement technology, committed to technical development, application software services, and research on test and measurement solutions, doewe technologies' products—such as the broadcast signal generator RWC2010C and broadcast tester FMH—will also help advance national policies. Doewe technologies' professional technical team has launched a new DRM/CDR testing solution, providing high-quality and reliable services to automakers and relevant departments.
DRM and CDR, as digital radio broadcast reception modules, represent important development directions for in-vehicle broadcast technology. Doewe's broadcast signal generator RWC2010C supports AM/FM RDS/DAB/DRM generation, features a built-in integrated multiplexer, supports 64 service components under DAB/DMB, and up to 4 streams under DRM. The FMH broadcast tester supports CDR demodulation testing, enabling comprehensive analysis and evaluation of CDR broadcast signals to ensure compliance with relevant technical standards and specifications. This will help promote automakers' adoption of digital radio reception modules and enhance the viewing experience of in-vehicle broadcasting.
In the field of DRM testing, doewe's RWC2010C is a professional DRM signal generator. Unlike traditional market devices that can only play DRM signals via stream files, doewe's RWC2010C features full DRM multiplexer editing capabilities. It can simultaneously play 4 independently configurable SERVICES and 4 independently configurable STREAM streams. DRM parameters such as LANGUAGE/LABEL/TYPE/SID can be independently edited and set, facilitating targeted functional testing and improved testing efficiency for head unit developers. Its PRBS playback capability further allows users to conduct receiver sensitivity performance tests.
Additionally, DRM's greatest advantage over traditional AM broadcasting lies in its superior data services, such as Announcement, Reconfiguration, Alternative Frequency, and Time Information testing. These data services and DRM's propagation characteristics give DRM digital broadcasting significant potential in emergency broadcasting. For testing these DRM FUNCTIONS, doewe's RWC2010C offers specialized independent editing interfaces, greatly facilitating user testing of receiver data services.
For CDR testing, doewe's portable CDR broadcast tester FMH can measure level/constellation diagram/MER and IQ characteristics. FMH's high MER testing capability places it among the top-tier instruments for transmitter testing, with comprehensive real-time MER testing reaching 45dB (pure digital CDR). It can granularly test MER parameters at all layers specified by standards, generate MER curves for subcarriers, and measure IQ distortion and amplitude-frequency response.
For CDR field testing, FMH features industry-leading reception sensitivity, ensuring capture and analysis of weak signals. It also includes spectrum waterfall plots and spectrum monitoring functions and can record IQ data for later playback testing. These capabilities undoubtedly make FMH a multi-functional instrument, delivering significant additional value to engineers.
With the explicit requirements from the three national departments regarding in-vehicle wireless broadcast reception module configuration, doewe technologies will continue to intensify R&D efforts, diversify wireless digital broadcast products, and enhance product quality to better serve the development of the digital broadcasting industry.
The road ahead is long; our mission continues. Doewe technology will grow alongside you, jointly creating a new technological future.