[ale] [OT] I need a tone generator for subterranean wire tracing

[Chris Fowler]

I had a zone that died on the controller.  I started down the path you
were going and even dug up some stuff until I decided to move the wire
to a different zone.  Problem fixed.

On Sat, 2011-05-14 at 21:05 -0400, Richard Bronosky wrote:
> I have a sprinkler system with one zone that doesn't work. I have
> opened up the (old analog gear system) timer to locate which wire is
> giving me the problem. Unfortunately I see it go out my basement wall
> and into the ground and have no idea were it goes to. I'm wondering if
> a simple tone generator like this will work http://j.mp/iF6Bup I
> strongly doubt it. I bet I need something like this http://j.mp/jiB1qY
> and I bet I can't even afford to rent it for a day. Also, I don't know
> where to look for one to rent.
> 
> My next idea was to make one. I found instructions for using an RF
> Choke to find a break in an in visible fence. However, that is taking
> advantage of the RF transmitter in the invisible fence base. I don't
> know how to produce and detect a signal. And, because it is
> subterranean, it needs to be pretty well amplified.
> 
> Please advise!
>