InstallingGRFromSource on Raspberry Pi

Note that there is a pre-built 32-bit SDR flavored Raspberry Pi OS distro, PiSDR that includes GNU Radio and other SDR utilities. Alternatively, you can install from source using the steps in the remainder of this page.

These instructions have been tested with the Raspberry Pi OS (previously called Raspbian) (32-bit) with desktop and recommended software on a Raspberry Pi 3B+. A 32GB microSD card is recommended.

Set up a swap file
A swap file will improve the compile time greatly.

sudo fallocate -l 2G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile To make the swap file permanent, add this line to /etc/fstab /swapfile none  swap  sw  0  0

Load prerequisites
Before building UHD and GNU Radio, you need to make sure that all the dependencies are installed. For Ubuntu 20.04 use this page.

Install UHD from source
If you want to use GNU Radio with a USRP, you FIRST must clone and install UHD. Follow the instructions in Install UHD from source.

Install GNU Radio

 * For GNU Radio 3.9, 3.10, and the Main branch, click here.
 * For GNU Radio 3.8, click here.