Ham Radio AO-51 Satellite, again on June 29, 2010 Amateur Radio K7AGE Radio Satellite Technology Telecommunications +
Working AO 51 Earth Orbiting Satellite Using QRP Equipment on June 29, 2010 Amateur Amateur Radio Communications satellite Radio +
Ham Radio AO-51 Satellite Demonstration on June 29, 2010 Amateur Radio American Radio Relay League Ham Radio Satellite +