sudo apt-get update
sudo apt install rtl-sdr
sudo add-apt-repository ppa:gnuradio/gnuradio-releases-3.8
sudo apt install gnuradio
sudo apt install gr-osmosdr
sudo apt install cmake
sudo apt install build-essential
sudo apt install swig
sudo apt install doxygen
sudo apt install git
sudo apt-get install libgmp3-dev
sudo apt-get install libsndfile1-dev
git clone git://github.com/pavelyazev/gr-dect2.git
cd gr-dect2
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig

Gnuradio companion should be used to open and run the flow graph dect2.grc from gr-dect/grc