Question
Where should a lightning arrester be installed in a coaxial feed line?
Answer Options
- A) At the output connector of a transceiver
- B) At the antenna feed point
- C) At the ac power service panel
- D) On a grounded panel near where feed lines enter the building
Correct Answer: D
Explanation
A lightning arrester (or lightning surge protector) is designed to safely divert the massive electrical energy from a lightning strike or static buildup away from your delicate equipment and into the ground. It must be installed as close as possible to the point where the antenna cable (feed line) enters the building.
Its ideal location is on a grounded panel near where feed lines enter the building. This placement ensures that the lightning energy is shunted to a robust station ground rod right before the cable runs inside. This is the most effective position to protect internal equipment and prevent the lightning energy from traveling into the building itself.
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