Advanced Qualification · A-006 Receivers · A-006-001-008
Which stage of a superheterodyne receiver lies between a tuneable stage and a fixed tuned stage?
- A Radio frequency amplifier
- B Intermediate frequency amplifier
- C Local oscillator
- D Mixer
Correct answer: D — Mixer. From the official ISED question bank, verified word for word.
Why
The mixer sits between the tunable radio frequency amplifier and the fixed tuned intermediate frequency amplifier. The full explanation — and one for every question — is in Pro.
Practise this section
Receivers: superheterodyne design, selectivity, sensitivity, images, AGC and noise.