Significance Of FDR Over TDR
The concept of preventative maintenance is old. But applied applications of a frequency domain reflectometer are new to routine cable/antenna maintenance. With the introduction of new lightweight and portable instrumentation, FDR-based test equipment has become the best method of installing and maintaining systems. Frequency Domain Reflectometers perform a sweep of frequencies of the transmission line input and then using IFFT (Inverse Fast Fourier Transform) on the reflected signals, converting them back to the time domain. The most significant benefit of the analyzer is that it not only performs the calculations of the DTF from the Vp received but also receives all the reflected signals from the faults in the frequency spectrum. Consequently, it provides the characterization of the type of fault found. Why FDR over TDR(Time Domain Reflectometer)? An FDR can create characterizations of the fault type, which is now capable while using TDR. TDRs aren’t capable of troubleshooting anten