Multiplexers allow multiple signals to be transmitted through a single fiber optic cable, simplifying cabling requirements. This reduction in cable complexity not only makes installations cleaner and more organized but also minimizes the physical space needed for wiring. Understanding WDM: Ideal for L-Band HTS and Reference or Tx/Rx in a single fiber, in satcom and diverse antennas within broadcast applications. Learn when to use WDM, how it works, and how open. Wavelength division multiplexing is a technique that sends signals down optical fibers at different wavelengths, using the physical property of light that different wavelengths do not mix when transmitted together. At the other end of the fiber, there is a.