Basic Qualification · B-003 Station assembly, practice and safety · B-003-010-008
En plus de la sensibilité et de la sélectivité, lequel des termes suivants est le troisième critère de la performance d'un récepteur de communications?
- ALa plage dynamique
- BLa gamme de fréquences
- CLa fidélité
- DLa plage de volume
Correct answer: A — La plage dynamique. Question tirée de la banque officielle d'ISDE.
Why
Dynamic range measures a receiver's ability to handle both very weak and very strong signals at the same time without distortion or blocking, making it the third key performance indicator alongside sensitivity and selectivity. 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