Basic Qualification · B-003 Station assembly, practice and safety · B-003-009-004
Sur une antenne Yagi à 3 éléments, quel élément est raccordé à la ligne de transmission?
- ALe réflecteur
- BLa perche ("boom")
- CLe directeur
- DL'élément alimenté
Correct answer: D — L'élément alimenté. Question tirée de la banque officielle d'ISDE.
Why
The driven element is the only part of a 3-element Yagi antenna that connects directly to the transmission line, which is the cable carrying your radio signal. 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