*Question E1C01:
[97.303] What is the maximum bandwidth for a data emission on 60 meters?*  

*Correct Answer is  D: 2.8 kHz*  

### AI Response: (may contain errors)  

The maximum bandwidth for a data emission on 60 meters is determined by the regulations set by the FCC. 

1. **Correct Answer Explanation**:  
   The correct answer is **2.8 kHz**. According to FCC Part 97.303, the maximum bandwidth for data emissions on the 60-meter band is limited to 2.8 kHz. This bandwidth allows for various digital modes of communication while ensuring that operators do not interfere with each other.

2. **Incorrect Choices Explanation**:  
   - **60 Hz**: This is too narrow for any practical data emission. It would not accommodate the necessary data rates for most digital modes.
   - **170 Hz**: While this is a common bandwidth for some narrowband modes, it is still below the maximum allowed for 60 meters.
   - **1.5 kHz**: This is also below the maximum limit. While some digital modes may operate within this range, it does not utilize the full bandwidth allowance.

3. **Useful Rules of Thumb**:  
   - Always refer to the specific band plan and regulations for the frequency you are operating on.  
   - For digital modes, consider the modulation type and its required bandwidth, but always ensure it does not exceed the maximum allowed for that band.

In summary, the maximum bandwidth for data emissions on 60 meters is set at 2.8 kHz, which accommodates a variety of digital communication methods while adhering to regulatory standards.