Marvelmind Modem HW v. (/Mhz) [SL4]The router is the central controller of the system which calculates position of mobile beacon ("hedgehog") 16 times per second based on data from beacons. They communicate via USB with dashboard and with beacons wirelessly in ISM band. This is the core of the Marvelmind indoor positioning kit. This modem uses a 915 868Mhz radio (software switchable) Key Features High precision (+ 2cm) indoor navigation system for autonomous robots and systems ("indoor