The DARC side of Munich @ EH2015

Ever wondered how these fancy bus and tram stop signs in public transport get their data? Ever wondered why there are digital signals roaming in the VHF range of your local radio stations? Well, there is a chance that these two things are related to each other! An ETSI standard for wireless infotainment forwarding and teledistribution plus a proprietary system for public transport displays combine to a playground where you can have serious fun! Motivated by the preliminary studies by windytan, we had a deeper look at the system deployed in Munich. The result is a story about the pleasures of reverse engineering and how easy it is to get knowledge about the signals all around you.

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