Basic Qualification · B-003 Station assembly, practice and safety · B-003-018-002
How could you best keep unauthorized persons from using a mobile station in your car?
- ATurn the radio off when you are not using it
- BPut a "Do not touch" sign on the radio
- CRemove the microphone when you are not using it
- DTune the radio to an unused frequency when you are done using it
Correct answer: C — Remove the microphone when you are not using it. From the official ISED question bank, verified word for word.
Why
Removing the microphone when you are not using it is the most effective way to stop unauthorized people from transmitting because the radio cannot send a signal without this essential input device. The full explanation — and one for every question — is in Pro.
Practise this section
Station assembly, practice and safety is section B-003 of the Basic exam: Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.
Drill B-003 — free, no account