QuadRF: Seeing Wi‑Fi and Tracking Drones with a Raspberry Pi Phased Array
QuadRF is a phased-array SDR tile built around a Raspberry Pi 5, designed for spatial RF “camera” style visualization in the 4.9–6 GHz range. Its fast I/Q streaming via MIPI and beamforming lets you track signals (including Wi‑Fi and drone links) by steering sensitivity in real time.