time-domain reflectometer


time-domain reflectometer

[′tīm də¦mān ‚rē‚flek′täm·əd·ər] (electronics) An instrument that measures the electrical characteristics of wideband transmission systems, subassemblies, components, and lines by feeding in a voltage step and displaying the superimposed reflected signals on an oscilloscope equipped with a suitable time-base sweep. Abbreviated TDR.