Lequel des modes d'émission suivants rend obligatoire la présence d'un dispositif pour prévenir ou indiquer la surmodulation dans une station de radio amateur?

Why

SSB, or single sideband voice, requires a way to stop or show overmodulation because pushing the signal too hard distorts the audio and splatters interference onto nearby frequencies. 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.

This question in English · All B-001 questions