Why do we need transponders?

The front of every vehicle on the track needs to be equipped with a transponder (radiator/license plate). The transponders enable the volume measured at the noise measuring stations to be assigned directly to the individual vehicles. A maximum of one transponder may be active per vehicle for this reason. Similarly, once a transponder is registered for a given vehicle, it may not be used on a different vehicle on the same day.
The necessary transponders will be provided to all organizers free of charge on the part of BILSTER BERG. A total of 170 transponders are available. If you lose a transponder or transponder holder, replacement costs will be due according to the price list.