Amplitude (AM) and frequency modulation (FM) techniques (AQA A-Level Physics): Quizzes

Making a signal suitable for transmission

The amplitude of the carrier wave

$f_c + f_m$

$2f_m$

The amplitude

The frequency of the carrier wave

$2(\Delta f + f_m)$

Noise affects amplitude, which is constant in FM

They require line-of-sight and don't refract well

$2 \times$ maximum available bandwidth