gqrx

Gqrx is an open source software-defined radio (SDR) receiver that operates on Linux and Mac, utilizing GNU Radio and the Qt GUI toolkit. Its primary use case is to serve as an AM/FM/SSB receiver or an FFT-only instrument, supporting a variety of hardware devices like RTL-SDR and HackRF. Notable features include automatic device discovery, multiple configuration sessions, and interaction capabilities with external applications via network sockets.