Wow!  AO-7 is Alive!


Known as "Phase-2B" before launch
Launched November 15, 1974, Delta, Vandenberg
Orbit: 1444 x 1459 km, Inclination 101.7 degrees
Launched with ITOS-G (NOAA 4) and the Spanish INTASAT
Modes: A, B, and C

Firsts:
Satellite-to-satellite relay communication via AO-6
Low-budget medical data relay and Doppler location of ground transmitters for search-and-rescue operations were done using this satellite
Mode-B transponder was the first using "HELAPS"
First OSCAR to fly a Battery Charge Regulator (BCR)