Deep Dive: E1D03
The correct answer is B: An amateur station that transmits communications to initiate, modify, or terminate functions of a space station. What a space telecommand station is an amateur station that transmits communications to initiate, modify, or terminate functions of a space station. Space telecommand stations send commands to space stations. For amateur radio operators, this is important for satellite operation. Understanding this helps when working with satellites.
Why Other Answers Are Wrong
Option A: Incorrect. Station on Earth for communication with other Earth stations via satellites is an Earth station, not a space telecommand station - telecommand sends commands, not general communication. Earth station isn't telecommand. Option C: Incorrect. Station located in satellite or balloon above 50 km is a space station, not a space telecommand station - telecommand is on Earth, not in space. Space station isn't telecommand. Option D: Incorrect. Station that receives telemetry from satellite/balloon is a telemetry receiving station, not a space telecommand station - telecommand sends commands, not receives telemetry. Telemetry receiving isn't telecommand.
Exam Tip
Space telecommand station = station that transmits communications to initiate/modify/terminate functions of space station. Think 'S'pace 'T'elecommand = 'S'ends 'T'elecommands to space. Space telecommand stations send commands to space stations. Not Earth station, not space station, not telemetry receiving - just command transmission to space.
Memory Aid
Space telecommand station = station that transmits communications to initiate/modify/terminate functions of space station. Think 'S'pace 'T'elecommand = 'S'ends 'T'elecommands. Space telecommand stations send commands to space stations. Important for satellite operation.
Real-World Example
A space telecommand station: It's an amateur station on Earth that transmits communications (commands) to a space station to initiate, modify, or terminate functions. For example, you might send a command to turn on a satellite's transponder or change its operating mode. This is what a space telecommand station is - it sends commands to space stations.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E1D
Reference: FCC Part 97.3
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E1D topic.