Once you've found a break, use the radio to check that you have a strong signal on both lines. I actually had two breaks but didn't know it until I found the first break and realized that one of the ends did not have a signal. I continued to dig in the direction of the dead line and found a second break a few feet away. If you have a strong signal on both ends connect them with a piece of wire, disconnect the choke and reconnect the wires from the fence into the transmitter. If the alarm goes off, congratulations, you've found your break!