*Question T2B05:
What would cause your FM transmission audio to be distorted on voice peaks?*  

*Correct Answer is  C: You are talking too loudly*  

### AI Response: (may contain errors)  

To understand why the correct answer is "You are talking too loudly," let's break down the options:

### Correct Answer: C - You are talking too loudly
- **Explanation**: In FM (Frequency Modulation) transmissions, if you speak too loudly, you can exceed the modulation limits of the transmitter. This results in distortion, particularly during voice peaks when your voice is at its loudest. The transmitter cannot accurately reproduce the audio signal, leading to clipping and distortion.

### Why the Other Choices are Incorrect:
- **A: Your repeater offset is inverted**
  - **Explanation**: An inverted repeater offset would affect the ability to communicate with the repeater, but it would not cause audio distortion. Instead, you would likely experience issues with the connection or not being able to access the repeater at all.

- **B: You need to talk louder**
  - **Explanation**: This is incorrect because talking louder would actually exacerbate the distortion issue. Instead, you should aim for a consistent and moderate speaking volume to avoid exceeding the modulation limits.

- **D: Your transmit power is too high**
  - **Explanation**: While excessive transmit power can lead to other issues, it does not directly cause audio distortion in FM transmissions. The distortion is primarily related to the modulation level rather than the power output.

### Useful Rules of Thumb:
- **Modulation Index**: For FM, the modulation index ($\beta$) is defined as the ratio of the frequency deviation ($\Delta f$) to the modulating frequency ($f_m$):
  
  $$
  \beta = \frac{\Delta f}{f_m}
  $$

- **Avoid Clipping**: To prevent distortion, maintain your audio levels within the recommended range for your equipment. A good practice is to keep your voice at a moderate level, ensuring that peaks do not exceed the transmitter's modulation capability.

By understanding these concepts, you can effectively manage your audio levels during FM transmissions to avoid distortion.