It happens that Kinell formulated :
Suggest a metal detector would help you plot the cable route.

Only if the cable is no more than a few inchres deep in the ground.


What Harry described is a Time-Domain Reflectometer (aka TDR). Not
a lot of people know that.

I didn't ;-)

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.org