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ERF Medien e.V. is a Christian media organization based in Wetzlar, Germany. It operates ERF Plus, a 24-hour DAB+ radio station broadcasting across central Europe.
To ensure signal quality across the DAB+ network, ERF Plus implemented the Inovonics Sofia 563 DAB+ Site Streamer as a critical monitoring solution. The Sofia 563 enables the engineering team to verify multiple parameters in real time — carrier and modulation integrity, metadata accuracy and slideshow transmission quality. Beyond monitoring, the device generates an internal stream from the off-air signal, providing the entire media house with access to what listeners actually receive.
“The ability to monitor our DAB+ signal locally has proven invaluable,” notes the engineering team. “We can immediately verify that our content is reaching audiences exactly as intended across the nationwide single-frequency network.”
European availability and responsive support were decisive factors. Inovonics says a recent firmware update was deployed seamlessly, demonstrating the system’s maintainability.
Inovonics says that for broadcasters operating in DAB+ environments, the Sofia 563 offers comprehensive monitoring in a reliable package.
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