Basic Qualification · B-003 Station assembly, practice and safety · B-003-020-010
What safety precautions should you take before beginning repairs on an antenna?
- A Ensure all masts to be installed are sufficiently light
- B Be sure to turn off the transmitter and disconnect the transmission line
- C Be sure the antenna structure is properly grounded
- D Plan the operation in the shortest possible time to minimize fatigue
Correct answer: B — Be sure to turn off the transmitter and disconnect the transmission line. From the official ISED question bank, verified word for word.
Why
Turning off the transmitter and disconnecting the transmission line stops high voltage electricity from reaching the antenna, protecting you from severe shock or burns while you work. 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.