Users place spectrum monitoring devices at their location. We support the Raspberry Pi platform in conjunction with software-defined radios based on cheap commodity hardware. As such a total investment of less than 100$ is enough to become an active supporter. The sensors stream real-time spectrum measurements to our backend.


All nodes communicate with our backend. It stores the measurements as retrieved by the sensors and additional pre-processed data.


All data we receive is accessible over an open API. Hence, anyone contributing with a sensor can access a unique data set for free!