Basic Qualification · B-003 Station assembly, practice and safety · B-003-006-008
In a single-sideband transmitter, which stage normally includes a circuit providing protection from excessive SWR?
- A Speech amplifier
- B Variable frequency oscillator
- C Balanced modulator
- D Final amplifier
Correct answer: D — Final amplifier. From the official ISED question bank, verified word for word.
Why
The final amplifier is the last stage before the antenna, where the radio frequency signal reaches its highest power. 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.