Vous émettez en modulation d'amplitude. Quelle largeur de bande votre signal occupet-il si la plus haute fréquence de votre voix est de 3 kHz?

Why

Amplitude modulation creates two sidebands, one above and one below your carrier frequency, each matching the highest audio frequency you transmit. 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.

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