RF Analyzer

RF Analyzer

In-app purchases

About this app

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, Airspy, Airspy HF+, HydraSDR 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
- Comprehensive Bookmark Manager for Stations (Frequencies) and Bands
- Download and Synchronize EiBi Shortwave Radio Database, POTA & SOTA Spots
- 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 within the 60 minutes test period (only actual analyzer usage counts - so enough time to test out all features with all your devices).

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, RTL-SDR, Airspy, Airspy HF+ or HydraSDR)
- Note: RTL-SDR Blog v4 and RTL-SDR Direct Sampling are fully supported.
- USB OTG adapter (USB-A female to USB-C for modern phones)
- This is not necessary for SDRs with USB-C connector (e.g. the HydraSDR)

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!

Ratings and reviews

I'm going to assume that the only way to view RF data using a phone is going to be by using a dongle to capture it? I looked at this to see if there was a rf signal turning on lights in my house or if it was just a bad controller and thankfully, if I understand the tutorial correctly, I don't need to waste time looking at other apps because this is not within a phone's capability without external hardware. This app does look to be very capable though with the correct hardware.

Found a bug, fixed it. Using a multiport dongle to connect my RTL-SDR v4 to my Samsung Tab S10 Lite, it was limiting me to 23Mhz on the lower end. Gave me full range of RTL-SDR on phone after an initial error. I flipped the USB-C around/over and it worked on phone. Tried as well on Tablet, worked, gives full spectrum of RTL-SDR. Unique problem, easy fix. Hopefully helps others. Also, happy that purchasing works on both devices as expected.

Great app, perfect price, works like a charm. does everything I need and more. I am using a nano 3 with NO OTG CABLE and it works flawlessly to foxhunt mesh nodes. The app is so good I would have paid for it twice, but you don't have to. The license to use it works on any Google Play connected device you're logged into that is compatible. Thanks Mr Dennis!

What’s new

- FFT Processing Pipeline Improvement
- Select FFT FPS from Display Tab
- Increased max. FFT size to 131072
- Crash-/Bugfixes