E1D03 - Amateur Extra Class

E1D03 : What is a space telecommand station?
A An amateur station located on the surface of the Earth for communication with other Earth stations by means of Earth satellites
B An amateur station that transmits communications to initiate, modify, or terminate functions of a space station
C An amateur station located in a satellite or a balloon more than 50 kilometers above the surface of the Earth
D An amateur station that receives telemetry from a satellite or balloon more than 50 kilometers above the surface of the Earth
Correct Answer: An amateur station that transmits communications to initiate, modify, or terminate functions of a space station