cubicsdr.com

CubicSDR is an open-source software-defined radio (SDR) application created and maintained by independent developer Charles J. Cliffe. The project focuses on providing a flexible, cross-platform environment for exploring RF spectrum from DC to daylight through any supported SDR hardware, whether low-cost USB dongles, high-end receivers, or custom FPGA boards. Typical use cases span amateur radio operators decoding digital voice modes, aviation enthusiasts tracking ADS-B aircraft transponders, security researchers inspecting ISM-band IoT traffic, educators demonstrating signal processing concepts, and short-wave listeners archiving international broadcasts. The interface presents a real-time waterfall and spectrum display alongside demodulation controls for AM, FM, SSB, CW, and wide-band digital modes; users can bookmark frequencies, record I/Q streams, and chain audio through virtual cables to decoding utilities such as MultiPSK or DSD+. Because the codebase is released under GPL-2.0, contributors routinely extend hardware support, add modulation modules, and integrate scripting interfaces for automated scanning or remote operation via network sockets. The resulting software package is lightweight, portable across Windows, macOS, and Linux, and requires only the vendor’s driver plus an SoapySDR middleware layer to recognize attached radios. CubicSDR is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources like winget, always installing the latest release and allowing batch installation alongside complementary SDR tools.