*Question T2A01:
What is a common repeater frequency offset in the 2 meter band?*  

*Correct Answer is  B: Plus or minus 600 kHz*  

### AI Response: (may contain errors)  

In the 2 meter band, the common repeater frequency offset is plus or minus 600 kHz. Here's a breakdown of why this is the correct answer and why the other options are incorrect.

### Correct Answer: Plus or minus 600 kHz
- **Reason**: In the 2 meter band (144-148 MHz), most repeaters use a standard offset of 600 kHz. This means that if you are transmitting on a certain frequency, the repeater will receive your signal on that frequency and retransmit it on a frequency that is either 600 kHz higher or lower.

### Incorrect Choices:
- **A: Plus or minus 5 MHz**
  - **Reason**: This offset is too large for the 2 meter band. Such a large offset is not used in amateur radio repeaters and would fall outside the 2 meter band frequencies.

- **C: Plus or minus 500 kHz**
  - **Reason**: While 500 kHz is a common offset in some other bands (like the 70 cm band), it is not the standard for the 2 meter band.

- **D: Plus or minus 1 MHz**
  - **Reason**: Similar to option A, a 1 MHz offset is too large for the 2 meter band and is not used for repeaters in this frequency range.

### Summary
- The standard repeater offset for the 2 meter band is **plus or minus 600 kHz**. This is a key point to remember for the Extra Class exam and for practical use in amateur radio operations.