QuadRF can spot drones and see WiFi through my wall
The QuadRF is a new open-source phased-array radio system built on a Raspberry Pi and FPGA that can detect drones and WiFi signals through walls. While the technology has significant surveillance implications, its creator intends it for radio astronomy and experimental RF research.
Why it matters
It highlights the democratization of advanced signal processing tools, raising questions about privacy and the accessibility of powerful surveillance-capable hardware.
The QuadRF (pictured above) a phased-array radio built around a Raspberry Pi 5 and an FPGA board with picosecond-level timing. It does advanced signal processing and beamforming.
The article presents technical information and potential risks objectively without taking a political stance.
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