... Chapter1 General 1.1 General informationSW_TC880 =TDR + Bridge SW_TC880=Automatic Detection + Manual DetectionSW_TC880 Cable Fault Locator ... principle is Time Domain Reflectometer (TDR) and Bridge Methods. It is a very convenient, intelligent and ... VOP, ZOOM, FIND, FILE, LINE, press RANG as Fig. 1.3 shows, then the right part of ... 1KM, 2KM, 4KM and 8KM. Press 500M as Fig. 1.4 shows, then the test range ...