*Question G2B05:
When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?*  

*Correct Answer is  C: 2 kHz to 3 kHz*  

### AI Response: (may contain errors)  

When selecting a Single Sideband (SSB) transmitting frequency, it's important to ensure that your signal does not interfere with stations operating on adjacent frequencies. Here's why the correct answer is 2 kHz to 3 kHz:

1. **Why the correct answer is correct (2 kHz to 3 kHz):**
   - SSB signals typically have a bandwidth of about 2.4 kHz. To avoid interference with adjacent channels, you should select a frequency that is at least one bandwidth away from other stations. This means a separation of approximately 2 kHz to 3 kHz is necessary to minimize interference.

2. **Why the other choices are incorrect:**
   - **5 Hz to 50 Hz (Choice A):** This separation is far too small. SSB signals are much wider than this, so such a small separation would result in significant overlap and interference.
   - **150 Hz to 500 Hz (Choice B):** This is also too narrow. While it is wider than Choice A, it still does not account for the full bandwidth of an SSB signal, leading to interference.
   - **Approximately 6 kHz (Choice D):** While this separation would certainly prevent interference, it is unnecessarily large. It would waste valuable spectrum space, which is not efficient for band planning.

3. **Useful rules of thumb:**
   - SSB bandwidth: Approximately 2.4 kHz.
   - Minimum separation: At least one bandwidth (2 kHz to 3 kHz) to avoid interference.

By maintaining a separation of 2 kHz to 3 kHz, you ensure that your SSB transmission is clear of adjacent channel interference while using the spectrum efficiently.