Basic Qualification · B-002 Operating and procedures · B-002-003-010
Quelle bande latérale est habituellement utilisée pour la phonie à la fréquence de 3755 kHz?
- AInférieure
- BIndépendante
- CDouble
- DSupérieure
Correct answer: A — Inférieure. Question tirée de la banque officielle d'ISDE.
Why
On the 3.7 MHz band, which falls below 10 MHz, amateur radio rules and tradition dictate using Lower Sideband for voice communication. 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