Keysight N9938-90003 User’s Guide                 53
DTF (Distance to Fault) Measurements
How to make DTF Measurements
9. Either press Edit/Save/Recall Cables then Recall Cable, or directly enter 
the Velocity Factor/Cable Loss of the DUT using the Velocity Facto
r and 
Cable Loss
 keys.
10. Connect the start end of the DUT to the FieldFox.
11. Press Meas Setup 4
 then Settings then Next Page. If the Alias-free Range 
setting is False, then you may see Alias faults on the screen. Learn more 
on page 61.