*Question E1B08:
[97.121] What limitations may the FCC place on an amateur station if its signal causes interference to domestic broadcast reception, assuming that the receivers involved are of good engineering design?*  

*Correct Answer is  D: The amateur station must avoid transmitting during certain hours on frequencies that cause the interference*  

### AI Response: (may contain errors)  

In this question, we are dealing with the issue of interference caused by an amateur radio station to domestic broadcast reception. The FCC has specific rules to manage such situations.

### Explanation:

1. **Correct Answer: D - The amateur station must avoid transmitting during certain hours on frequencies that cause the interference**

   - **Why it's correct:** The FCC may impose restrictions on the operating hours of an amateur station to mitigate interference with domestic broadcast reception. This is a practical solution that allows the amateur station to continue operating while minimizing disruption to broadcast services.

2. **Why the other choices are incorrect:**

   - **Choice A: The amateur station must cease operation**
     - This is incorrect because the FCC typically does not require a complete cessation of operation unless absolutely necessary. Instead, they prefer to impose more targeted restrictions, such as limiting operating hours or frequencies.

   - **Choice B: The amateur station must cease operation on all frequencies below 30 MHz**
     - This is incorrect because the interference issue is specific to certain frequencies. A blanket restriction on all frequencies below 30 MHz is unnecessarily broad and not a typical FCC response.

   - **Choice C: The amateur station must cease operation on all frequencies above 30 MHz**
     - Similar to Choice B, this is incorrect because it applies a broad restriction without addressing the specific frequencies causing interference. The FCC aims to resolve interference issues with minimal impact on amateur operations.

### Key Points:

- The FCC's goal is to balance the needs of amateur radio operators with the protection of other services, such as domestic broadcast reception.
- Restrictions are typically specific to the frequencies causing interference and may involve limiting transmission during certain times to reduce impact.
- Understanding these rules helps amateur operators comply with regulations while continuing their activities responsibly.