Basic Qualification · B-003 Station assembly, practice and safety · B-003-013-011
Lorsque plus d'un signal est reçu, le récepteur FM pourrait ne démoduler que le signal le plus fort. Comment s'appelle ce comportement?
- AL'effet de capture
- BL'effet de domination
- CL'effet de brouillage
- DL'effet de soumission
Correct answer: A — L'effet de capture. Question tirée de la banque officielle d'ISDE.
Why
When two FM signals arrive at once, the receiver locks onto the stronger one and completely ignores the weaker one, much like a person focusing on a loud voice while tuning out a whisper. The full explanation — and one for every question — is in Pro.
Practise this section
Station assembly, practice and safety is section B-003 of the Basic exam: Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.
Drill B-003 — free, no account