*Question G1B01:
[97.15(a)] What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?*  

*Correct Answer is  C: 200 feet*  

### AI Response: (may contain errors)  

The correct answer to the question about the maximum height for an antenna structure not near a public use airport is 200 feet. Here’s a breakdown of why this is the case:

1. **Why the correct answer (200 feet) is correct:**
   - According to the Federal Aviation Administration (FAA) regulations, any antenna structure that exceeds 200 feet above ground level must be registered with the FAA and the Federal Communications Commission (FCC). This height is significant because it is the threshold that determines whether the structure could potentially interfere with air traffic.

2. **Why the other choices are incorrect:**
   - **A: 50 feet** - This height is well below the threshold and does not require FAA notification or FCC registration.
   - **B: 100 feet** - Similar to 50 feet, this height is also below the 200-foot limit and does not require registration.
   - **C: 200 feet** - While this is the maximum height allowed without notification, any structure at exactly 200 feet does require registration. Therefore, this option is misleading as it implies that 200 feet is acceptable without registration.

3. **Useful rules of thumb:**
   - Always check the local regulations and guidelines regarding antenna structures, as there may be additional requirements based on proximity to airports or other factors.
   - The 200-foot rule is a standard guideline for many types of structures, not just antennas, and is important for ensuring safety in aviation.

In summary, the maximum height for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC is 200 feet, as exceeding this height necessitates registration.