Advanced Qualification · A-002 Advanced components and circuits · A-002-009-003
What occurs when an excessive amount of signal energy reaches the mixer circuit?
- A Automatic limiting occurs
- B A beat frequency is generated
- C Mixer blanking occurs
- D Spurious signals are generated
Correct answer: D — Spurious signals are generated. From the official ISED question bank, verified word for word.
Why
When too much signal energy hits a mixer, the circuit gets overwhelmed and stops behaving like a simple frequency shifter. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.