*Question T2A03:
What is a common repeater frequency offset in the 70 cm band?*  

*Correct Answer is  A: Plus or minus 5 MHz*  

### AI Response: (may contain errors)  

In the 70 cm band (430-440 MHz), the common repeater frequency offset is typically plus or minus 5 MHz. This means that if a repeater is operating on a certain frequency, the corresponding input frequency for the user will be 5 MHz higher or lower.

### Explanation of the Correct Answer:
- **Correct Answer: Plus or minus 5 MHz**
  - This offset is standard for most repeaters in the 70 cm band. It allows for effective communication while minimizing interference between different repeaters.

### Explanation of Incorrect Choices:
- **A: Plus or minus 5 MHz**
  - This is actually the correct answer, so it cannot be incorrect.

- **B: Plus or minus 600 kHz**
  - This offset is not standard for the 70 cm band. It is more commonly associated with the 2 meter band (144-148 MHz) where some repeaters may use a 600 kHz offset.

- **C: Plus or minus 500 kHz**
  - This offset is also not standard for the 70 cm band. Similar to the 600 kHz offset, it is more relevant to the 2 meter band.

- **D: Plus or minus 1 MHz**
  - While some repeaters may use a 1 MHz offset, it is not the common standard for the 70 cm band. The 5 MHz offset is more widely used.

### Summary:
- The standard repeater offset for the 70 cm band is plus or minus 5 MHz, which helps to ensure clear communication and reduce interference. Other offsets like 600 kHz, 500 kHz, and 1 MHz are not typical for this band and are more relevant to other amateur radio bands.