Tutorials

For someone brand new to GNU Radio, we recommend the following sequence:

1. All beginner tutorials
2. The three "Core GNU Radio Mechanics" reference pages
3. A couple mod/demod tutorials

Please leave tutorials-related feedback (either for an individual tutorial or overall organization) in the Discussion page of this article (tab at the top), we are always looking for ways to improve.

Beginner Tutorials Introducing GNU Radio What is GNU Radio? Installing GNU Radio Your First Flowgraph Flowgraph Fundamentals Python Variables in GRC Variables in Flowgraphs Runtime Updating Variables Signal Data Types Converting Data Types Packing Bits Streams and Vectors Hier Blocks and Parameters Creating and Modifying Python Blocks Creating Your First Block Python Block With Vectors Python Block Message Passing Python Block Tags DSP Blocks Low Pass Filter Example Designing Filter Taps Sample Rate Change Frequency Shifting Reading and Writing Binary Files SDR Hardware RTL-SDR FM Receiver B200-B205mini FM Receiver

Intermediate Tutorials Modulation and Demodulation Narrowband FM Single Sideband (SSB) BPSK Demodulation QPSK Mod and Demod Frequency Shift Keying (FSK) OFDM Basics Packet Communications Miscellaneous Understanding a Flowgraph's Python Code Using GNU Radio With SDRs IQ and Complex Signals Understanding Sample Rate Understanding ZMQ Blocks

Reference Pages Core GNU Radio Mechanics Stream Tags Polymorphic Types (PMTs) Message Passing Creating Custom Blocks Out of Tree Modules Writing blocks in C++ Writing the YAML file for a block (GR 3.8+) Porting Blocks and Flowgraphs Porting Existing Flowgraphs to Newer Version Porting Existing OOTs from 3.7 to 3.8 Porting Existing OOTs from 3.8 to 3.9 Developer Resources Volk- what it does, why it rocks, how to write new kernels Working with ALSA and Pulse Audio Using Visual Studio Code for Source level debugging of C++ OOTs Using Eclipse for Building and Source level debugging C++ OOTs Using Code::Blocks IDE for GNU Radio Development Git and GNU Radio How to use Octave or Matlab with GNU Radio GNU Radio Scheduler Using Custom Buffers for Hardware Accelerated Blocks Remote Control and Automation of Flowgraphs with XMLRPC