*Question G4C11:
What technique helps to minimize RF “hot spots” in an amateur station?*  

*Correct Answer is  C: Bonding all equipment enclosures together*  

### AI Response: (may contain errors)  

To minimize RF "hot spots" in an amateur station, the correct technique is:

**Correct Answer: C: Bonding all equipment enclosures together**

1. **Why the correct answer is correct:**
   - Bonding all equipment enclosures together helps to ensure that all parts of the station are at the same electrical potential. This minimizes the risk of RF currents flowing between different pieces of equipment, which can create "hot spots" or areas of high RF voltage. By bonding, you create a common ground reference, reducing the potential for RF interference and improving safety.

2. **Why the other choices are incorrect:**
   - **A: Building all equipment in a metal enclosure**  
     While metal enclosures can provide shielding and reduce RF leakage, they do not address the issue of different potentials between equipment. Without bonding, RF currents can still flow between enclosures.
   
   - **B: Using surge suppressor power outlets**  
     Surge suppressors are designed to protect against voltage spikes from the power line, not to manage RF currents or potential differences between equipment. They do not address RF "hot spots."
   
   - **D: Placing low-pass filters on all feed lines**  
     Low-pass filters are used to reduce harmonic emissions and prevent RF from entering the feed lines, but they do not address the issue of RF currents between equipment enclosures. They are not effective in minimizing RF "hot spots."

3. **Useful Rule of Thumb:**
   - Ensure all equipment is bonded to a common ground point. This can be done using short, heavy-gauge wires or copper straps to connect all metal enclosures to a single grounding bus or plate. This practice helps maintain equal potential across the station, reducing RF interference and enhancing safety.