Basic Qualification · B-003 Station assembly, practice and safety · B-003-020-001
Why should you ground all antenna and rotator cables when your station is not in use?
- A To prevent unauthorized persons from using the station
- B To help protect the station equipment and building from lightning damage
- C To lock the antenna system in one position
- D To avoid radio frequency interference
Correct answer: B — To help protect the station equipment and building from lightning damage. From the official ISED question bank, verified word for word.
Why
Grounding antenna and rotator cables creates a safe path for lightning energy to travel directly into the earth, bypassing your expensive radios and the building itself. The full explanation — and one for every question — is in Pro.
Practise this section
Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.