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SDRPlusPlus is a cross-platform software-defined radio (SDR) receiver created by AlexandreRouma that enables users to listen to and analyze radio signals across a wide frequency spectrum. Designed for radio enthusiasts, amateur operators, and RF engineers, the application supports numerous SDR hardware devices including RTL-SDR, HackRF, LimeSDR, and PlutoSDR, allowing real-time demodulation of AM, FM, SSB, CW, and digital modes. The program’s modular architecture presents a workspace where individual dockable panels—VFO manager, frequency manager, recorder, FFT spectrum, and demodulator—can be arranged to suit individual workflows, while a dark and light theme selector aids prolonged monitoring sessions. Built on modern C++ and GPU-accelerated FFT libraries, SDRPlusPlus achieves low CPU usage even when decoding wide-bandwidth signals, and its remote-server module lets the frontend run separately from the RF backend, facilitating headless Raspberry Pi or cloud deployments. Version 1.0.4, the second public release, introduces improved stereo FM de-emphasis, configurable audio compression, updated Rigctl-compatible TCP control, and corrected gain scheduling for E4000-based tuners, making it suitable for casual shortwave listening, satellite weather image acquisition, aviation ADS-B spotting, and EMC pre-compliance sweeps. As an open-source project released under GPLv3, the codebase invites community plugins such as DAB+ demodulators, frequency trackers, and signal classifiers, extending the platform beyond traditional receiver software. SDRPlusPlus is available for free on get.nero.com, with downloads delivered through trusted Windows package sources like winget that always supply the newest build and support batch installation alongside other applications.
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