BEACON aims to develop, implement, and demonstrate a Multi-array antenna receiver for navigation in C-band from LEO satellites developed under ESA’s FutureNAV LEO-PNT IoD. The development is to be based on a compact and relatively low-cost multi-array antenna with innovative advanced signal processing that exploits both pre- and post-correlation stages. Beamforming will be applied to significantly increase signal gain. The AoA of the LEO signals will be determined along with jamming and spoofing detection and mitigation exploiting null forming. Calibration of the antenna array in an anechoic chamber is to be performed to precisely quantify the array geometry and signal delays. PNT solutions will be the ultimate output of the receiver along with observables and ephemeris data.