FDM

FDM, or Frequency Division Multiplexing, is a method of transmitting multiple signals over a single communication channel by dividing it into different frequency bands. Each signal is assigned a unique frequency range, allowing them to coexist without interfering with each other. Think of it like multiple radio stations broadcasting simultaneously on different channels; a radio tuner can select and listen to one station without interference from others. FDM is widely used in radio, television broadcasts, and telecommunications to efficiently utilize bandwidth and send multiple data streams at once.