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AMSAT P2B (Phase 2B, AO 7, OSCAR 7)


The AMSAT P2B (Phase 2B) satellite was a small communications satellite designed by amateur radio operators. Attitude control was accomplished with a magnetic and damping rods. There were two beacon experiments (near 30 and 430 MHz), and two repeaters with code storage capability. The repeater receiver frequencies were near 146 and 432 MHz, and the transmitter frequencies near 30 and 146 MHz. The command system was manufactured in Australia and the second repeater in Germany.

Nation: USA
Type / Application: Amateur communication
Operator: AMSAT-NA
Contractors: AMSAT-NA
Configuration: octagonal prism
Propulsion: None
Power: Solar cells, batteries
Mass: 29 kg
Orbit: 1450 km × 1455 km, 101.7
Satellite COSPAR Date LS Launch Vehicle Remarks
AMSAT P2B (Phase 2B, OSCAR 7, AO 7, A-O-B) 1974-089B 15.11.1974 Va SLC-2W Delta-2310 with NOAA 4, Intasat