Earlier this month we posted about a new port of the HackRF software defined radio Linux library for Android. Now the author of the Android port has created a new app called RF Analyzer. The app is basically a real time spectrum viewer that includes a waterfall display. The app can be downloaded from Github at https://github.com/demantz/RFAnalyzer.

The app currently supports the following features.

Browse the spectrum by scrolling horizontally

Zoom in and out, both horizontally and vertically

Adjust the sample rate and center frequency to match the current view of the screen by double tapping

Auto scale the vertical axis

Jump directly to a frequency

Adjust the gain settings of the HackRF

Select a pre-recorded file as source instead of a real HackRF

Change the FFT size

Setting the frame rate either to a fixed value or to automatic control

Activate logging and showing the log file

In the future the author intends to support the RTL-SDR and implement demodulation for basic modes such as AM, FM and SSB.

To use the app you’ll need an USB OTG (on-the-go) cable to connect your Android device to the HackRF.