Extra exam question E1D03
Subelement E1, COMMISSION RULES· Group E1D · 47 CFR §97.3(a)(45)
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 (correct answer)
- 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
WhyA space telecommand station is an amateur station that transmits communications used to initiate, modify, or terminate the functions of a space station. §97.3(a)(45) defines a space telecommand station as an amateur station that transmits communications used to initiate, modify, or terminate the functions of a space station, in other words, the ground-based station that controls a satellite, answer B. A ground station working other Earth stations through a satellite, the satellite itself, and a station that merely receives telemetry are each defined separately and don't match this specific term.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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