Question
Which of the following amateur stations may transmit one-way communications?
Answer Options
- A) A space station, beacon station, or telecommand station
- B) A local repeater or linked repeater station
- C) A message forwarding station or automatically controlled digital station
- D) All these choices are correct
Correct Answer: A
Explanation
The general rule in the amateur service is that transmissions must be two-way communications (messages exchanged between two stations). However, the FCC grants specific, limited exceptions for one-way transmissions for essential functions like broadcasting information or controlling remote devices.
The amateur stations authorized to transmit one-way communications are a space station, for beacons or telemetry; a beacon station, which broadcasts information like propagation conditions; and a telecommand station, which sends control instructions. While repeaters and message forwarding stations often appear to be one-way, their functions are inherently part of a two-way relay of user-originated communications, not solely a one-way information broadcast.
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