Basic Qualification · B-003 Station assembly, practice and safety · B-003-006-001
In a single-sideband transmitter, what does the fixed RF oscillator do?
- A It directly drives the sideband filter
- B It drives the mixer
- C It balances the variable frequency oscillator
- D It produces an RF carrier
Correct answer: D — It produces an RF carrier. From the official ISED question bank, verified word for word.
Why
In a single-sideband transmitter, the fixed RF oscillator generates the steady radio frequency signal that acts as the carrier wave before the sideband filter removes the unwanted parts. 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.