Basic Qualification · B-003 Station assembly, practice and safety · B-003-001-007
Dans une station HF, quel dispositif est conçu pour dissiper l'énergie RF et en prévenir le rayonnement?
- AUn filtre passe-bas
- BUn dissipateur thermique
- CUne charge fictive
- DUn parafoudre
Correct answer: C — Une charge fictive. Question tirée de la banque officielle d'ISDE.
Why
A dummy load is a special resistor that absorbs radio frequency energy from your transmitter and turns it into harmless heat, allowing you to test your station without sending any signals into the air. 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