Over the nearly 20 years since its creation, the GNU Radio project has become the open-source software system for software defined radio development, experimentation, teaching and study. It is widely used in commercial, government, academic and amateur radio applications with many people contributing to its development and maintenance. Its annual conference attracts hundreds of people, many of whom are licensed radio amateurs.
Since ARDC is interested in furthering a) open source software; b) amateur radio digital communications (hence our name!) and c) the educational potential of amateur radio, GNU Radio is the quintessential example of a project that we would like to support.
Our grant to GNU Radio is a general one, i.e., they may use it for any purpose within the scope of their organization. –Phil Karn, KA9Q