Basic Qualification · B-003 Station assembly, practice and safety · B-003-020-011
What safety precaution is especially important for a ground-mounted antenna?
- A Ensure the feed point is at eye level
- B Ensure the location is as dry as possible
- C All radials should be buried at least 15 cm deep
- D Ensure people are kept at a safe distance
Correct answer: D — Ensure people are kept at a safe distance. From the official ISED question bank, verified word for word.
Why
Ground-mounted antennas can expose anyone nearby to harmful radio frequency energy, so keeping people at a safe distance prevents accidental burns or tissue damage. 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.