What is the FCC Part 97 definition of a space station?
Any satellite orbiting Earth
Incorrect, because it does not specify that the satellite must be an amateur station, and merely any satellite orbiting Earth might not meet the criteria specific to amateur radio regulations.
A manned satellite orbiting Earth
Incorrect, because the FCC’s definition of a space station does not require the satellite to be manned; it can be unmanned and still qualify as long as it is an amateur station located above 50 km.
An amateur station located more than 50 km above Earth’s surface
Correct, because it aligns precisely with the FCC’s definition of a space station in Part 97, specifying that it is an amateur station located more than 50 km above Earth’s surface.
An amateur station using amateur radio satellites for relay of signals
Incorrect, because it describes an amateur station that relays signals via amateur radio satellites, which is a different type of station known as a relay or satellite station, not a space station as defined by the FCC.
Explanation
The question revolves around the specifics of what constitutes a ‘space station’ as per the Federal Communications Commission (FCC) Part 97, which governs the Amateur Radio Service in the United States. In particular, this is a definition-based question aimed at understanding key terminologies that are crucial for amateur radio operators. According to the FCC Part 97, Section 97.3(a)(41), a ‘space station’ is defined as an amateur radio station located more than 50 kilometers (approximately 31 miles) above the Earth’s surface. This definition is critical because it differentiates space stations from other types of amateur stations, and ensures that operators are aware of the regulatory scope and requirements for stations operating in space. It is vital to understand this distinction as communication protocols, power levels, and licensing could differ significantly for space stations compared to terrestrial stations.
T1A07 2022-2026