*Question G1C03:
[97.303(h)(1)] What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?*  

*Correct Answer is  A: 2.8 kHz*  

### AI Response: (may contain errors)  

In the 60-meter band, the FCC has specific rules regarding the maximum bandwidth for transmissions. Let's break down the correct answer and why the other options are incorrect:

1. **Correct Answer: 2.8 kHz (Choice A)**
   - The FCC rules specify that the maximum bandwidth for USB (Upper Sideband) transmissions on the 60-meter band is 2.8 kHz. This is to ensure that transmissions do not interfere with adjacent channels and to maintain efficient use of the spectrum.

2. **Why the Other Choices are Incorrect:**
   - **5.6 kHz (Choice B):** This bandwidth is too wide for the 60-meter band. Such a wide bandwidth could cause interference with adjacent channels, which is not allowed under FCC regulations.
   - **1.8 kHz (Choice C):** While this bandwidth is narrower and would fit within the allowed limits, it is not the maximum permitted bandwidth. The FCC allows up to 2.8 kHz, so using only 1.8 kHz would not utilize the full available bandwidth.
   - **3 kHz (Choice D):** This bandwidth exceeds the maximum allowed by the FCC for the 60-meter band. Transmissions with a 3 kHz bandwidth would violate the rules and could interfere with other users.

3. **Useful Rule of Thumb:**
   - For the 60-meter band, remember that the maximum bandwidth for USB is 2.8 kHz. This is a specific regulation for this band and differs from other amateur bands, so it's important to memorize this limit for the exam.

By understanding these rules, you can ensure compliance with FCC regulations and avoid causing interference on the 60-meter band.