*Question T1A06:
[97.3(a)(9)] What is the FCC Part 97 definition of a beacon?*  

*Correct Answer is  D: An amateur station transmitting communications for the purposes of observing propagation or related experimental activities*  

### AI Response: (may contain errors)  

The correct answer to the question about the FCC Part 97 definition of a beacon is:

**D: An amateur station transmitting communications for the purposes of observing propagation or related experimental activities.**

### Explanation of the Correct Answer:
- **Definition of a Beacon**: According to FCC Part 97, a beacon is specifically defined as a station that transmits signals for the purpose of observing propagation or conducting related experimental activities. This means that beacons are used to help amateur radio operators understand how radio waves travel and to test equipment or propagation conditions.

### Why the Other Choices are Incorrect:
- **A: A government transmitter marking the amateur radio band edges**  
  - This is incorrect because beacons in amateur radio are not government-operated. They are operated by amateur radio operators and are not used for marking band edges.

- **B: A bulletin sent by the FCC to announce a national emergency**  
  - This choice is incorrect as it describes a communication method used by the FCC, not a beacon. Beacons are not used for emergency bulletins.

- **C: A continuous transmission of weather information authorized in the amateur bands by the National Weather Service**  
  - While weather information can be transmitted on amateur bands, this does not fit the definition of a beacon. Beacons are specifically for propagation observation, not for continuous weather broadcasts.

### Summary:
- A beacon is an amateur station that transmits for propagation observation.
- Other choices do not align with the definition provided in FCC Part 97.

This understanding is crucial for the Extra Class exam, as it highlights the specific roles and definitions within amateur radio regulations.