Basic Qualification · B-003 Station assembly, practice and safety · B-003-019-002
Established practice demands that all ground electrodes be bonded together with heavy conductors. What protection does this provide in case of a lightning strike?
- A Reduces induced current by adding impedance
- B Prevents voltage differences between devices
- C Establishes a ground (reference) plane at the station
- D Drains static electricity on a continuous basis
Correct answer: B — Prevents voltage differences between devices. From the official ISED question bank, verified word for word.
Why
Bonding all ground electrodes with heavy conductors ensures they share the same electrical potential during a lightning strike, which prevents dangerous voltage differences from appearing between your radio gear. 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.