AMSAT-OSCAR-7: a lesson in history

Did you know that the oldest, still functioning satellite in the world is an amateur radio satellite? AMSAT-OSCAR-7 was launched 50 years ago and was created with significant participation from Germany. Dr. Karl Meinzer (DJ4ZC), founder of AMSAT-Deutschland e.V., even earned his doctorate with the UV transponder (Mode-B) and the HELAPS method he developed! Here is a short lesson on the extraordinary history of OSCAR-7 (AO-7):

Here it goes on… AMSAT-OSCAR 7