*Question T2A05:
How should you respond to a station calling CQ?*  

*Correct Answer is  C: Transmit the other station’s call sign followed by your call sign*  

### AI Response: (may contain errors)  

When responding to a station calling CQ, the correct procedure is to transmit the other station’s call sign followed by your call sign. This is important for proper communication etiquette in amateur radio.

### Correct Answer Explanation:
- **Correct Answer: C** - Transmit the other station’s call sign followed by your call sign.
  - This method acknowledges the station that called CQ and identifies yourself. It helps ensure that the calling station knows you are responding to them, which is essential for effective communication.

### Why the Other Choices are Incorrect:
- **A: Transmit "CQ" followed by the other station’s call sign**
  - This is incorrect because "CQ" is a general call to all stations, and it does not indicate that you are specifically responding to the station that called. It can create confusion.

- **B: Transmit your call sign followed by the other station’s call sign**
  - This is incorrect as it does not clearly indicate to the calling station that you are responding to their CQ. It may lead to misunderstandings about who is initiating the contact.

- **D: Transmit a signal report followed by your call sign**
  - This is incorrect because a signal report is typically given after establishing contact, not as an initial response to a CQ call. It is important to first identify yourself as a responder.

### Summary of Proper Procedure:
When you hear a station calling CQ, respond with:
- The other station’s call sign
- Your call sign

This ensures clarity and proper communication etiquette in amateur radio operations.