Basic Qualification · B-002 Operating and procedures · B-002-004-004
Comment est-il possible de diminuer le brouillage en ondes lors de longs essais d'émission?
- AEn employant une charge fictive
- BEn choisissant une fréquence libre
- CEn utilisant une antenne non résonante
- DEn utilisant une antenne résonante
Correct answer: A — En employant une charge fictive. Question tirée de la banque officielle d'ISDE.
Why
A dummy load is a special device that looks like an antenna to your radio but absorbs all your signal as heat instead of sending it into the air. The full explanation — and one for every question — is in Pro.
Practise this section
Operating and procedures is section B-002 of the Basic exam: How to operate: calling, phonetics, Q-signals, repeaters, nets, emergency traffic, and the courtesies that keep a band usable.
Drill B-002 — free, no account