*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)  

In the context of amateur radio, a remotely controlled station is one that is operated from a location different from where the transmitter is located. The FCC has specific rules regarding the operation of such stations, especially if the control link (the connection between the operator and the station) malfunctions.

### Explanation:

1. **Correct Answer: 3 minutes (Choice B)**
   - According to FCC rule [97.213], if the control link of a remotely controlled station malfunctions, the station is allowed to continue transmitting for a maximum of 3 minutes. This rule is in place to ensure that any unintended transmissions do not continue indefinitely, which could cause interference or other issues.

2. **Why Other Choices Are Incorrect:**
   - **30 seconds (Choice A):** This duration is too short and does not align with the FCC's allowance for troubleshooting or automatic shutdown procedures.
   - **5 minutes (Choice C):** This duration exceeds the FCC's limit, which could lead to prolonged interference or unauthorized transmissions.
   - **10 minutes (Choice D):** This is significantly longer than the permissible duration and could result in serious interference or regulatory issues.

### Key Rule:
- **Maximum Duration:** If the control link fails, the station must cease transmissions within 3 minutes to comply with FCC regulations.

This rule ensures that any issues with remote control do not lead to extended periods of unauthorized or potentially harmful transmissions.