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<p align="center">
<img src="https://github.com/gnuradio/gnuradio/blob/master/docs/gnuradio.png" width="75%" />
</p>
[](https://github.com/gnuradio/gnuradio/actions/workflows/make-test.yml)
[](https://github.com/gnuradio/gnuradio/blob/master/COPYING)
[](https://www.gnuradio.org/doc/doxygen/)
[](https://repology.org/project/gnuradio/badges)
GNU Radio is a free & open-source software development toolkit that
provides signal processing blocks to implement software radios. It can
be used with readily-available, low-cost external RF hardware to create
software-defined radios, or without hardware in a simulation-like
environment. It is widely used in hobbyist, academic, and commercial
environments to support both wireless communications research and real-world
radio systems.
Please visit the GNU Radio website at https://www.gnuradio.org/ and the
wiki at https://wiki.gnuradio.org/. Bugs and feature requests are
tracked on GitHub's [Issue Tracker](https://github.com/gnuradio/gnuradio/issues).
If you have questions about GNU Radio, please search the **discuss-gnuradio**
mailing list [archive](https://lists.gnu.org/archive/html/discuss-gnuradio/),
as many questions have already been asked and answered. Please also
[subscribe](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio) to
the mailing list and post your new questions there.
## How to Install GNU Radio
### Prebuilt Binaries
The recommended way to install GNU Radio on most platforms is using available binary package distributions.
The following command is for Debian, Ubuntu, and derivatives. Consult your distribution information to obtain the version of GNU Radio which is included.
sudo apt install gnuradio
For other operating systems and versions, see [Installing from Binaries](https://wiki.gnuradio.org/index.php/InstallingGR#From_Binaries)
### PyBOMBS
PyBOMBS is good at building GNU Radio, UHD, and various Out of Tree (OOT) modules from source and then installing into a specified user directory rather than in the system files. PyBOMBS detects the user's Operating System and loads all of the prerequisites in the first stage of the build.
For a quick start, open a terminal window and enter the following commands. This will install Release 3.8 with Python3.
sudo -H pip3 install PyBOMBS
pybombs auto-config
pybombs recipes add-defaults
pybombs prefix init ~/gnuradio -R gnuradio-default
<b>Wait</b>. The terminal will show the progress.
To run GNU Radio Companion, enter:
pybombs run gnuradio-companion
Complete PyBOMBS instructions are in the [PyBOMBS README](https://github.com/gnuradio/pybombs#pybombs).
### From Source
Complete instructions for building Gnuradio from source code are detailed in
[Installing GR From Source](https://wiki.gnuradio.org/index.php/InstallingGR#From_Source).
## Legal Matters
Some files have been changed many times throughout the years. Copyright
notices at the top of source files list which years changes have been
made. For some files, changes have occurred in many consecutive years.
These files may often have the format of a year range (e.g., "2006 - 2011"),
which indicates that these files have had copyrightable changes made
during each year in the range, inclusive.
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