This application allows users to connect to and control RTL-SDR servers on their local network. It provides live spectrum and waterfall displays, various demodulation modes, and DSP controls for audio filtering and signal tuning. Users can save favorite stations and adjust RF settings.
1.0.7
June 13, 2026
- Improved WFM stereo decoding for better channel separation. - Fixed an issue where stereo audio could collapse back to mono after a few seconds. - Improved 19 kHz pilot tracking and 38 kHz stereo subcarrier recovery. - Added additional validation for left/right channel polarity, pilot loss handling, and mono fallback. - General DSP stability improvements for broadcast FM audio.
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CoronaSDR is a free iOS application designed to connect to and control rtl_tcp SDR servers over your local network. It offers live spectrum and waterfall displays, various demodulation modes, and DSP controls.
No, CoronaSDR does not require any account creation. Users can simply set their rtl_tcp host and port, connect, and begin tuning.
CoronaSDR is available for iPhone and iPad devices.
CoronaSDR supports AM, NFM, WFM, USB, LSB, and CW demodulation modes, providing flexibility for various radio signals.
Yes, CoronaSDR allows you to save your favorite stations and provides options for importing and exporting these lists.
The latest version, 1.0.2, was released on March 20, 2026, indicating recent development activity. The app was first released on March 3, 2026.
CoronaSDR has an age rating of 4+, making it suitable for a wide range of users.
No, CoronaSDR does not contain advertisements. It is a completely free application.
