Might be worth trying a standard electric fence generator. These put in a
pulse of a few 10,s of kv( as far as I know)
Probably pick it up as a 'click" on a standard AM/FM reciever. These blokes
could maybe suggest a better antenna. Just make sure you if you need a leak
you dont use the fence post!!!!!.
"Sal M. O'Nella" wrote in message
...

"Irv Finkleman" wrote in message
...
If there is a free end accessible you might try feeding some rf into it
and then following along with a receiver to detect the underground
portions. This may or may not require strong attentuation at the
receiver antenna -- using a short loop or something across the input.

If there is one level. chances are you may find others underneath with
a little digging unless there are accessible ends to them whereas
tracking
the RF would work just as well.

Just a wild and maybe not so crazy idea of how I'd try for a quick cheap
fix.

Irv VE6BP


Good idea. RF tracking works very well for buried cables and should work
for fence wire. I used it some years ago when we were adding antennas to
an existing field and needed to know exactly where to dig only by hand.
The device is in two pieces, one of which couples RF onto a cable by
induction (from up to several feet away); the other piece is a receiver
which detects the re-radiation from the cable up to several feet away.
The transmit unit and the receive unit need to be separated about fifty
feet apart or more for this to work. Otherwise, you will get direct
coupling through the air and not via the conductor you're tracking. The
receiver sensitivity was adjustable on the one I used.

I rented our unit from a surveyors' supply house. Rent, try, buy. good
luck.

"Sal"