4. Operating Instructions
Figure 4.8. Smoothed vs. unsmoothed traces at very small vertical scales (0.7 mρ per
vertical division).
4.7. Distance-to-Fault
4.7.1. Measure Distance-to-Fault (DTF)
1. Attach the cable to the test port.
2. Set Vp to match the Vp of the attached cable or select an appropriate cable from the cable
type library. See Section 4.5 Cable Type Library for instructions on using the cable type
library.
3. Depending on the Main menu being used, either press MENU → Distance to Fault (Special
Main menu only) or press the AUTOFIT/HELP → AUTOFIT menu option. The CT100B
trace is now scaled to show the entire cable from beginning to end. See Figure 4.9.
46 CT100B TDR Cable Analyzers Operator’s Manual
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