Advanced Qualification · A-005 Transmitters, modulation and processing · A-005-004-003
Carrier suppression in a single-sideband transmitter takes place in:
- A the balanced modulator stage
- B the carrier decouple stage
- C the mechanical filter
- D the frequency multiplier stage
Correct answer: A — the balanced modulator stage. From the official ISED question bank, verified word for word.
Why
A balanced modulator stage is designed to mix the audio signal with the radio frequency carrier in a way that cancels out the carrier itself, leaving only the sidebands. The full explanation — and one for every question — is in Pro.
Practise this section
Transmitters, modulation and processing: AM, FM, SSB, keying, speech processing, and the numbers behind occupied bandwidth.