In article eSLXe.9183$fb6.2357@trnddc08, "James Sweet" wrote:

You can't use the fence controller itself as they normally shut down when the
loop is open and you need it connected to only one end so the signal will
not be present after the break.

Entirely incorrect. At least with respect to the Invisible Fence brand,
anyway. It does *not* shut down on an open loop, you do not need it connected
to only one end, and the discontinuity in the signal is *clearly* evident. I
just had to trace a break last week; the AM radio showed very strong signals
all the way along the wire, which abruptly stopped *directly* over the break.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.