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SDRangel 7.23.2, developed by f4exb and now in its twenty-fifth public iteration, is an open-source software-defined-radio (SDR) workstation built for simultaneous reception and transmission across a wide range of popular low-cost and mid-range RF hardware. The application natively supports Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube dongles, presenting a unified graphical interface for exploring the electromagnetic spectrum from LF through microwave. Inside a single window users can instantiate multiple independent channels, each equipped with real-time FFT displays, waterfall plots, audio or IQ recording, digital-mode decoders, and programmable TX chains that make the program equally attractive to short-wave listeners, satellite trackers, ham-radio operators, RF test labs, IoT security auditors and educators demonstrating wireless protocols. Advanced features include beam-forming with phased arrays, remote operation via an embedded HTTP server, headless operation for embedded ARM platforms, a plugin architecture that ships with demodulators for CW, SSB, AM, FM, DMR, dPMR, D-Star, YSF, P25, LoRa and ADS-B, and rig-control integration for automatic antenna switching or rotator steering. Built-in channel simulators and impairment generators further allow bench-top testing of new modulation schemes without extra instrumentation. Because every setting—from center frequency, gain tables and sample rate to demodulator parameters—can be saved as a reusable preset, field operators can switch between monitoring setups in seconds while laboratory users can script long-duration measurements through the JSON-based REST API. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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