22 Apr Digital Radio Mondiale test by RFmondial & Leibniz University using Ampegon transmitter
Ampegon has granted a solid state low power (500 W) transmission solution to RFmondial GmbH in Hannover, Germany. In cooperation with the Institute of Communication Technology (IKT) at the Leibniz Universität Hannover the transmitter allows technical experts to continue making professional measurements and demonstrations of the DRM standard in regular city environmental broadcasting conditions. A broadcast license for 26.045 MHz shortwave has been given to the Leibniz Universität Hannover.
The installation will bring DRM technology and research equipment to the campus laboratory allowing technical demonstrations and the analysis of the reception results. The use of the equipment in mobile configuration enables a testing environment for improved car radio receivers now able to test live reception inside a city. The unlimited access and the flexible operation of the broadcast chain including all possible configurations and power levels will help to test and demonstrate DRM live broadcasts and will show the technical strength of the technology. The equipment is fully remote accessible for unmanned operation.
New algorithms, coding and power improvements will be tested and verified. System linearization and coverage conditions for several operation modes are under examination. The measurements and reports are expected to be well received in international technical publications and conferences.
This installation is a complete DRM service chain maintained and operated by RFmondial together with the Leibniz Universität Hannover benefitting from the support of Fraunhofer IIS. It co-exists with a DRM transmission in the FM band at 95.2 MHz. In parallel to experiments undertaken at the University, the service is also offered to receiver, module or chipset manufacturers in order to verify and improve their implementations in real conditions.