The radio amateur satellite AO-40 was built by an international team of Amateur Radio volunteers. As a partner in this project Amsat-ON realized a K-band transponder. The development of the transponder was done by Stefaan Burger, ON4FG, Danny Orban, ON4AOD, Peter Pauwels, ON1BPS and Philip Sanders, ON7IZ
Kband4AO-40 K-band, The Challenge (source: www.sunsunsun.net)
amsat_ao40-n8deu-tim-jun-03AO-40 – An International Satellite For All Radio Amateurs (source: www.harc.net)
A0-40 – QSO’s