D STAR is growing across the US and the world http://www.dstarinfo.com/repeater-maps.aspx Amsat UK has info about a D STAR satellite http://amsat-uk.org/2013/10/22/integration-of-worlds-first-d-star-cubesat/ If you don't have a radio, you can use a DV Dongle on your computer Give it a try 73 WA4HFN Damon