Hello Folks,
              Some time ago there was an OT thread about PIC based lawn mowers.
I
don't want to re-start it but somebody mentioned something about an
"invisible fence" if my memory serves me it involved a buried wire
transmitting a signal which was picked up by a small receiver unit. I think
it was used to keep pets inside an area without the need for a visible
fence. If anybody has any information about such a device could you please
drop me an e-mail.

Cheers

Peter.

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