OSCAR 7

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OSCAR 7 is classified as:

Amateur radio

NORAD ID: 7530

Int'l Code: 1974-089B

Perigee: 1,446.6 km

Apogee: 1,466.2 km

Inclination: 101.8 °

Period: 114.9 minutes

Semi major axis: 7827 km

RCS: 0.7708 m² (medium)

Launch date: November 15, 1974
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)

Uplink (MHz): 145.850-145.950
Downlink (MHz): 29.400- 29.500
Beacon (MHz): 29.502
Mode: A
Call sign:
Status: Active

Uplink (MHz): 432.125-432.175
Downlink (MHz): 145.975-145.925
Beacon (MHz): 145.970
Mode: B C
Call sign:
Status: Active

Uplink (MHz):
Downlink (MHz): 2304.100
Beacon (MHz): 435.100
Mode: D(RTTY)
Call sign:
Status: Inactive

This 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.