Ubuntu 20.04 Users NOTE:
Note that on Ubuntu 20.04 or newer PyQt4 is no longer available. A contributor has created his own modification to the code which uses PyQt5. You can try it at this link https://github.com/rfjohnso/kerberossdr
- Selecting “Uniform Gain” will allow you to set the same gain value for all four receivers.
- The antenna spacing value (s, fraction of wavelength) is automatically calculated based on frequency and a user set antenna spacing (s’, meters). For circular arrays, just use the spacing between each antenna, the program will calculate the radius for you.
- I’ve added a button to the Web UI to enable the sync display and the noise source in one click. If the noise source or the sync display (or both) is enabled the button will disable both. This should make calibration less cumbersome on mobile devices.
- I've added CSS to the Web UI. This will allow for easy customization of the layout and adds a mobile friendly flare. Feel free to edit ./static/style.css to your liking.
- The graphs hurt less to look at.
KerberosSDR Demo Software
Installing the software
Install Dependencies via apt:
sudo apt update
sudo apt install python3-pip python3-pyqt4 pyqt4-dev-tools build-essential gfortran libatlas3-base libatlas-base-dev python3-dev python3-setuptools libffi6 libffi-dev python3-tk pkg-config libfreetype6-dev php7.2-cli
Uninstall any preinstalled numpy packages as we want to install with pip3 to get optimized BLAS.
sudo apt remove python3-numpy
Install Dependencies via pip3:
pip3 install numpy
pip3 install matplotlib
pip3 install scipy
pip3 install cairocffi
pip3 install pyapril
pip3 install pyargus
pip3 install pyqtgraph
pip3 install peakutils
pip3 install bottle
pip3 install paste
Install RTL-SDR-Kerberos Drivers
Our Kerberos RTL-SDR driver branch contains code for slightly modified Osmocom RTL-SDR drivers that enable GPIO, disable dithering, and disable zerocopy buffers which seems to cause trouble on some ARM devices.
sudo apt-get install libusb-1.0-0-dev git cmake
git clone https://github.com/rtlsdrblog/rtl-sdr-kerberos
cmake ../ -DINSTALL_UDEV_RULES=ON
sudo make install
sudo cp ../rtl-sdr.rules /etc/udev/rules.d/
echo 'blacklist dvb_usb_rtl28xxu' | sudo tee --append /etc/modprobe.d/blacklist-dvb_usb_rtl28xxu.conf
Reboot the Pi.
Test 4x Tuners
At this stage we recommend first testing your four tuners with rtl_test. Open four terminal windows, or tabs, and in each window run "rtl_test -d 0", "rtl_test -d 1", "rtl_test -d 2" and "rtl_test -d 3". Ensure that each unit connects and displays no errors. Install KerberosSDR Demo Software
Clone or unzip the software
git clone https://github.com/rtlsdrblog/kerberossdr
Now you can run the software by typing
Full software tutorial at www.rtl-sdr.com/ksdr
Edit the run.sh file and comment out the >&/dev/null parts on the last line to show any errors to the terminal.
This software was 95% developed by Tamas Peto, and makes use of his pyAPRIL and pyARGUS libraries. See his website at www.tamaspeto.com