*Question T8B05:
What is a satellite beacon?*  

*Correct Answer is  D: A transmission from a satellite that contains status information*  

### AI Response: (may contain errors)  

A satellite beacon is a transmission from a satellite that contains status information. This is important for users on the ground to monitor the health and operational status of the satellite.

### Explanation of the Correct Answer:
- **Correct Answer (D)**: A transmission from a satellite that contains status information.
  - Beacons are used to relay information about the satellite's operational status, such as its power levels, temperature, and other telemetry data. This helps operators and users ensure that the satellite is functioning correctly.

### Explanation of Incorrect Answers:
- **A**: The primary transmit antenna on the satellite.
  - This is incorrect because a beacon is not an antenna; it is a signal transmitted by the satellite. The antenna is the hardware that transmits the beacon signal.
  
- **B**: An indicator light that shows where to point your antenna.
  - This is incorrect because a beacon is not a physical light indicator. While some systems may use visual indicators, a satellite beacon specifically refers to a radio transmission, not a light.

- **C**: A reflective surface on the satellite.
  - This is incorrect because a reflective surface is typically part of the satellite's design for signal reflection or solar energy collection, not a beacon. A beacon is an active transmission, not a passive component.

### Summary:
- A satellite beacon provides essential status information through radio transmissions, helping users monitor satellite health.
- Understanding the function of beacons is crucial for effective satellite communication and operation.