Fluke 990DSL, User Manual

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6-1
Chapter 6
TDR Testing and Fault Location
Introduction
This chapter describes the CopperPro’s TDR (Time Domain Reflectometer)
test. The TDR testing function can often help you locate loop faults with
greater precision than the parametric fault location tests that are described
Chapter 4. With TDR, not only can you confirm the results of the basic
parametric tests, but when you use TDR in conjunction with those tests, you
can also vastly improve your ability to accurately measure the distance to
faults in a cable.
The TDR Auto-Test function combines both frequency domain (parametric)
and time domain (TDR) testing functions in the same package. This
combination not only provides a rapid learning curve (due to the consistent
user interface), but also gives you with a truly powerful—yet cost-effective—
testing solution.