*Question E1C08:
[97.213] What is the maximum permissible duration of a remotely controlled station’s transmissions if its control link malfunctions?*  

*Correct Answer is  B: 3 minutes*  

### AI Response: (may contain errors)  

The correct answer to the question about the maximum permissible duration of a remotely controlled station’s transmissions if its control link malfunctions is **3 minutes**. 

### Explanation:

1. **Why the correct answer is correct:**
   - According to FCC regulations, if a remotely controlled station loses its control link, it is allowed to continue transmitting for a maximum of **3 minutes**. This rule is in place to ensure that the station can operate safely and to minimize interference with other communications.

2. **Why the other choices are incorrect:**
   - **A: 30 seconds** - This duration is too short and does not comply with the regulations for remotely controlled stations.
   - **C: 5 minutes** - This duration exceeds the maximum allowed time for a malfunctioning control link.
   - **D: 10 minutes** - This duration is also too long and not permissible under the rules.

3. **Useful rules of thumb:**
   - Always remember that for remotely controlled stations, the maximum transmission time during a control link failure is **3 minutes**. This is a critical regulation to ensure that operators can regain control of their stations without causing prolonged interference.

By keeping this regulation in mind, you can confidently answer questions related to the operation of remotely controlled stations on the Extra Class exam.