Basic Qualification · B-003 Station assembly, practice and safety · B-003-010-007
When receiving a modulated signal, what is the adverse consequence of too narrow a receiver bandwidth?
- A Lower signal-to-noise ratio
- B Loss of information
- C Loss of dynamic range
- D Lower signal strength
Correct answer: B — Loss of information. From the official ISED question bank, verified word for word.
Why
If a receiver's bandwidth is set too narrow, it acts like a funnel that is too small to let the entire signal through, cutting off the outer edges where important details of the modulation live. 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.