An onboard information system having an antenna (2) for receiving satellite-based geoposition data. The onboard information system includes a housing (1) that can be installed in a vehicle interior and a module for processing satellite-based geoposition data. The antenna (2) for receiving satellite-based geoposition data is arranged on the housing (1) such that in the installed state a reception direction of the antenna (2) points toward the vehicle interior. The onboard information system can be used particularly in a vehicle as a tachograph, preferably as a digital tachograph, and/or toll collection appliance.