*Question T4B07:
What does a DMR “code plug” contain?*  

*Correct Answer is  B: Access information for repeaters and talkgroups*  

### AI Response: (may contain errors)  

A DMR (Digital Mobile Radio) "code plug" is a configuration file that contains essential information for operating a DMR radio. 

### Correct Answer: B - Access information for repeaters and talkgroups

- **Why this is correct**: 
  - A code plug includes settings for various repeaters, talkgroups, and other operational parameters. It allows the radio to connect to specific networks and communicate with other users effectively. This information is crucial for the radio to function properly in a DMR environment.

### Why the Other Choices are Incorrect:

- **A: Your call sign in CW for automatic identification**  
  - This is incorrect because while a call sign is important for identification, it is not typically stored in the code plug in CW (Continuous Wave) format. Instead, the call sign is usually transmitted in voice or digital formats, and the code plug does not specifically handle CW identification.

- **C: The codec for digitizing audio**  
  - This choice is incorrect because the codec used for audio digitization is generally a standard feature of the DMR system and not something that is configured in the code plug. The code plug focuses on operational settings rather than the technical details of audio processing.

- **D: The DMR software version**  
  - This is also incorrect as the software version is related to the firmware of the radio itself and is not part of the code plug. The code plug is more about user-configurable settings rather than the underlying software version.

### Summary

In summary, the code plug is essential for configuring a DMR radio to access specific repeaters and talkgroups, making option B the correct answer. The other options do not accurately reflect the purpose or content of a DMR code plug.