How does FDM transmit multiple signals across a single conductor such as coaxial cable simultaneously?

Question

How does FDM transmit multiple signals across a single conductor such as coaxial cable simultaneously?

In: Engineering

Answer 1

Think of it like hitting multiple keys on the piano at the same time. The conductor – the air – hosts multiple frequencies simultaneously in a complex waveform. By tuning some receiver to only receive a narrow band of frequencies, we could extract out when a specific key is being played.