James is a HAM and he wants to build a Raspberry Pi for using D-Star to run his HAM online. Leo says James will need a few extra pieces to work, but it's the ideal device for that purpose. Check out RaspberryPi.org for more information on how to use a Raspberry Pi for a host of uses. You can even use it as a computer running Linux and Windows 10. There's also a great book called Linux for Makers by Aaron Nekum.