dspectrum:

Automated RF/SDR Signal Analysis [Reverse Engineering]

Pre-requisites

Inspectrum (https://github.com/miek/inspectrum)

Ruby

Installation

git clone https://github.com/tresacton/dspectrum
cd dspectrum
chmod +x ./dspectrum
gem install colorize

cp ./dspectrum /usr/local/bin/  # optional

Usage:

./dspectrum   #  or simply `dspectrum` if you copied it to /usr/local/bin

This will spawn an interactive shell, along with inspectrum itself. As you usually would, open your capture file. Then align the cursors, right click the signal, add amplitued plot (for OOK) or add frequency plot (for 2FSK). Right click the plot that appeared, and click extract data. The demodulated bits should appear in your terminal.

This script has been tested with OOK & 2FSK signals with a 100% success rate (so far...). It does some sanity checking and will alert if you something doesn't feel right.

You can also use this tool to compare 2 parts of a signal in the same file, or signals from two separate files.

Demo

Video demonstration - Capturing signals from two files, and comparing them:

Thanks

nullwolf

GitHub @tresacton  ·  Twitter @tresacton