SDR Radio

SDR Radio Transforms Your Device into a Professional Spectrum Analyzer

SDR Radio unlocks the invisible world of radio frequencies, turning your Android device into a fully functional software-defined radio receiver. From air traffic control to amateur radio bands, public safety channels, and weather satellite signals, this app decodes, filters, and displays real-time electromagnetic spectrum data without requiring dedicated hardware beyond a standard RTL-SDR dongle.

Core Functionality and Tools

• Real-time spectrum waterfall display with adjustable FFT size, gain control, and bandwidth filters from 200 Hz to 20 MHz
• Multi-mode demodulation supporting AM, FM (narrow/wide), LSB, USB, CW, and digital modes including DMR, P25, and AX.25
• Frequency range coverage from 24 MHz to 1.7 GHz with automatic band planning and memory bank storage for 500+ presets
• Audio recording and playback with WAV/MP3 export, automatic squelch, and noise reduction filters for clear signal capture
• GPS tagging of received signals with export to KML format for mapping interference sources or tracking mobile transmitters
• SDRPlay, RTL-SDR, Airspy, and HackRF support via USB OTG or network stream (TCP/UDP) from a remote server

Key Advantages

• Zero learning curve with pre-configured band plans for aviation, marine, amateur, broadcast, and emergency services
• Battery-optimized processing using hardware acceleration for FFT calculations, reducing CPU load by 40% compared to desktop SDR software
• Offline signal analysis with recorded IQ data playback, spectrum averaging, and persistence mode for catching intermittent transmissions
• Automatic frequency identification matching unknown signals against a built-in database of 10,000+ known transmitters worldwide
• Multi-channel monitoring with up to 4 simultaneous demodulators on different frequencies within the same 2 MHz bandwidth window

Download Mobile App Now

Limited offer: Unlock full spectrum analysis, unlimited recording time, and advanced digital mode decoding with exclusive access for first users. Today only — gain lifetime access to all premium features without subscription fees.

Technical Disclaimer

SDR Radio requires an external SDR receiver (RTL-SDR, Airspy, HackRF, or SDRPlay) connected via USB OTG or network stream. Internet connection is required for GPS tagging, frequency database updates, and remote server streaming. In-app purchases available for advanced digital mode decoders and recording export formats. Age rating: 12+ due to unmoderated user-uploaded frequency databases. Data usage varies based on streaming quality and recording length. Compatible with Android 5.0 and above with USB OTG support.