underground cable fault distance locator (arduino)

asking for its program....or someone could teach me how to program it..
#newbie :slight_smile:

Google "time-domain reflectometer"

Also have a look here though you can buy relatively cheap TDR's of unknown quality.
http://www.testequipmentdepot.com/triplett/cable-length-tester/3271.htm
http://www.specialized.net/Specialized/SS200-T3-Snap-Shot-Fault-Finding-TDR-Up-to-3000-8022.aspx