Basic Qualification · B-001 Regulations and policies · B-001-016-011
En fonction de la fréquence indiquée et du mode d'émission, laquelle des combinaisons suivantes est interdite?
- ALa radiotélégraphie en code Morse (CW) sur 10,11 MHz
- BLe FT8 sur 10,136 MHz
- CLa modulation en bande latérale unique (BLU) sur 10,12 MHz
- DLa modulation de fréquence (FM) sur 29,6 MHz
Correct answer: C — La modulation en bande latérale unique (BLU) sur 10,12 MHz. Question tirée de la banque officielle d'ISDE.
Why
Single sideband (SSB) on 10.12 MHz is prohibited because the 30-metre band, which includes this frequency, strictly limits operations to Morse code and data modes only; voice transmissions like SSB are not allowed anywhere on this band. 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