Basic Qualification · B-001 Regulations and policies · B-001-024-003
Selon le Code de sécurité 6, à quelles fréquences le rayonnement de l'énergie RF peut-il nous causer le plus de risques?
- ADe 48 MHz à 300 MHz
- BDe 300 MHz à 3 000 MHz
- CAu-dessus de 1 500 MHz
- DDe 3 MHz à 30 MHz
Correct answer: A — De 48 MHz à 300 MHz. Question tirée de la banque officielle d'ISDE.
Why
Safety Code 6 identifies the 48 MHz to 300 MHz range as the most hazardous because the human body absorbs radio frequency energy most efficiently at these frequencies, creating a resonance effect that heats tissues more than other bands. The full explanation — and one for every question — is in Pro.
Practise this section
Regulations and policies is section B-001 of the Basic exam: The rules: who may operate, what the certificate allows, station identification, third-party traffic, what you may and may not transmit, and how ISED regulates the amateur service.
Drill B-001 — free, no account