Basic Qualification · B-003 Station assembly, practice and safety · B-003-012-004
What is the usual bandwidth of an amateur radio single-sideband signal?
- A Between 3 kHz and 6 kHz
- B Between 2 kHz and 3 kHz
- C 1 kHz
- D 2 kHz
Correct answer: B — Between 2 kHz and 3 kHz. From the official ISED question bank, verified word for word.
Why
A single-sideband voice signal usually takes up between 2 kHz and 3 kHz of radio spectrum because it transmits only one side of the voice frequency range, stripping away the carrier and the other side to save space. 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.