The TCPbox implement a flexible infrastructure for a distributed ad-hoc data communication and support for precise navigation using multiple satellite navigation systems like GPS, Glonass and Galileo (GNSS). Different versions of the TCPbox can act as communication hubs and equipped with different GNSS receivers they also support precise positioning using realtime kinematic algorithms (RTK). In areas without internet infrastructure they can serve as a gateway to a (satellite) internet connection and also act as a local reference station for correcting GNSS signals.