Advanced Qualification · A-002 Advanced components and circuits · A-002-006-007
Laquelle des classes d'amplification cidessous assurerait le meilleur rendement pour l'amplificateur de puissance d'un émetteur CW, RTTY ou FM?
- AClasse B
- BClasse A
- CClasse C
- DClasse AB
Correct answer: C — Classe C. Question tirée de la banque officielle d'ISDE.
Why
Class C amplifiers are the most efficient choice for constant-envelope signals like CW, RTTY, or FM because they conduct for less than half of the input cycle, wasting very little energy as heat. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
Drill A-002 — free, no account