Advanced Qualification · A-006 Receivers · A-006-004-005
Dans un récepteur superhétérodyne, le signal FI amplifié est appliqué à l'étage appelé :
- Aoscillateur local
- Bdétecteur
- Camplificateur RF
- Dsortie audio
Correct answer: B — détecteur. Question tirée de la banque officielle d'ISDE.
Why
In a superheterodyne receiver, the amplified intermediate frequency signal must be converted back into an audio or data signal, which is the specific job of the detector stage. The full explanation — and one for every question — is in Pro.
Practise this section
Receivers is section A-006 of the Advanced exam: Receivers: superheterodyne design, selectivity, sensitivity, images, AGC and noise.
Drill A-006 — free, no account