Frequency Domain Reflectometry

Frequency Domain Reflectometry (FDR) is a technique used to locate and analyze faults or characteristics in electrical cables and systems. It involves sending a continuous wave signal at different frequencies into a cable and measuring the reflected signals caused by imperfections or changes along the cable. By analyzing how these signals reflect back at various frequencies, technicians can determine the location and nature of issues without physically inspecting the entire cable. FDR provides a detailed "profile" of the cable's condition in the frequency domain, enabling efficient maintenance and troubleshooting.