Revised: February 9, 2025
How does one convert a graphical block diagram concept of a signal processing circuit to DSP software for an actual SDR? DSP software is key to working effectively with SDRs at the practical level to which amateurs are accustomed with traditional analog technology and the soldering iron.
Introduction to GNU Radio
The latest most comprehensive source of information about GNU Radio is their website: https://www.gnuradio.org/about/ The website contains information about suitable operating systems for installation of the application, the downloadable GNU Radio software package, introductory tutorials on the use the graphical user interface, and project examples. All you need to know.
GNU Radio and this website examples
Many of the DSP examples published here were originally developed using GNU Radio version 3.7. This version is obsolete and is replaced by the current versions 3.9 and 3.10. Version 3.7 flow graphs will not run on the newer versions of GNU Radio. The flow graphs from the obsolete version 3.7 are included simply as visual examples to guide construction of new flow graphs that use the newest GNU Radio software versions.