Basic Qualification · B-003 Station assembly, practice and safety · B-003-021-011
For best RF safety, where should the ends and centre of a dipole antenna be located?
- A As high as possible to prevent people from coming in contact with the antenna
- B Near or over moist ground so RF energy will be radiated away from the ground
- C As close to the transmitter as possible so RF energy will be concentrated near the transmitter
- D Close to the ground so simple adjustments can be easily made without climbing a ladder
Correct answer: A — As high as possible to prevent people from coming in contact with the antenna. From the official ISED question bank, verified word for word.
Why
Raising a dipole antenna as high as possible keeps the strong radio waves far from people, preventing burns or other harm from direct contact with the metal wires. 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.