RF Analyzer

RF Analyzer turns your Android device into a real-time spectrum analyzer for Software Defined Radio (SDR). Visualize and listen to radio signals around you - from amateur radio to broadcast signals and beyond.

Whether you're a curious beginner or a seasoned ham, RF Analyzer offers a hands-on, interactive way to explore radio signals.

FEATURES

- Works with HackRF, RTL-SDR, or pre-recorded IQ files

- View live spectrum (FFT) and waterfall plots

- Demodulate AM, FM, SSB, and CW signals

- Record raw IQ samples for offline analysis

- A responsive and modern Material Design interface

- Scroll, zoom, and tune through the bands

- Built-in context-aware help and a full offline in-app manual

PRICING

You can try all features for free with a 7-day trial and up to 60 minutes of analyzer usage.

If you like it, a one-time in-app purchase unlocks the full version - no subscriptions, no accounts, no ads.

This app is a hobby project, built with passion and countless hours of work. Supporting the app helps me continue developing and improving it. Thank you! 🙏

REQUIREMENTS

- Android phone or tablet (with USB OTG support)

- Supported SDR hardware (HackRF or RTL-SDR)

- Note: The RTL-SDR Blog v4 is fully supported when enabling the 'Allow Out-of-Bound Frequency' setting in the app.

- USB OTG adapter (USB-A female to USB-C for modern phones)

LEARN MORE

Want to go deeper? The full user manual is available with signal identification tips, ham radio basics, and more: https://demantz.github.io/RFAnalyzer/

Have fun exploring, learning, and listening to radio signals :)

73!

- Dennis (DM4NTZ), Heidelberg, Germany

LICENSE

This application is released under the GNU General Public License v2. It is free software and the source code is available on GitHub.

LEGAL ISSUES

Please note that I am not responsible for any legal issues caused by the usage of this application. Be responsible and comply with your local law!