What is the FCC Part 97 definition of a space station?

Answer: C. An amateur station located more than 50 km above Earth's surface

FCC rule 97.3 defines a space station as an amateur station located more than 50 km above Earth's surface. The definition is about height, not about being a satellite or having people on board. A station on the ground using a satellite is not a space station.

Tip: Space station = more than 50 km up.

FCC rule reference: Part 97.3(a)(41)