Let me start by saying it ain't easy finding a break in a broken wire without the proper tool and your professional DogWatcch dealer has the tool. I'm just saying! :-)
You may have some luck with that radio but before you try there are some things you need to do to your transmitter. Take it off the wall and flip it over. You will a small rectangle in the back with some switches. Switch the transmitter to AM. I'm going to assume the transmitter is turn off as that sound is rather annoying. Turn the transmitter back on after you switch it. (don't forget to switch it back to FM when you done or the collars will not work, and turn the trans. off and on to reset it)
Now get your transistor radio and tune it to the lowest AM frequency. If you have an old walkman that would be ideal, they are small and the earphones help you hear the radio better. Now hold the radio close the wire where it comes out of the house and listen for some noise. If you don't hear anything rotate the radio and check the X, Y and Z axis listening for some noise.
Assuming you hear some noise you can now begin to trace the wire. Follow the wire out from the house until you don't hear anything. In a perfect world that will be where the wire break is. But don't get your hopes up, it's usually never that accurate. If there is no break give the wire a tug and see if it will give. If it does keep pulling until you find the end. Now you've got your break! Lay the wire back on top of the ground in the direction it came from. At the end of that wire is where the other cut end is. Use the radio to find that wire if need be.
If this doesn't work I would highly recommend calling in the professionals! Try not to cut the wire and test like mentioned. Too many splices in a fence weaken the wires integrity and will shorten it's life.
If you need the # for your local dealer please go to www.dogwatch.com
Toni did it work?
Who is your local DogWatch dealer?