Posted: 6/30/2009 12:52:53 PM EDT
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I have an in ground pet fence. Love it, works great, dogs have lots of freedom and 2 acres to play on. Problem is, I get breaks now and then. In the past I've always been able to find them, but right now I am having a hell of a time. I'm wondering if there is a way to narrow down where the break is. |
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1. Disconnect the fence wire from the fence transmitter.
2. Wrap several turns of this fence wire around a Dremel Tool. 2. Turn the Dremel tool on. (The brushes in the Dremel tool's motor generate broadband electrical noise) 3. Take a portable radio out to the spot where the fence wire first enters the ground. 4. Tune the radio to whatever spot on the AM broadcast band receives the strongest electrical noise from the Dremel tool. (The noise should get stronger or weaker as you move the radio closer and further from the wire). 5. Take the radio along the route where the fence wire is buried, listening for a sudden drop in electrical noise. The location where that sudden drop occurs is probably where the break in your wire is. 6. Repair wire. |
| If you know anyone that works for the phone or cable company ask them to bring home you a TDR. Time domain reflectometer. The Vop of a dog fence will usually be about 63%. The trick is to know it will show as an open but it may be 60 foot out on a 100 ft loop it will also show a fault at 40 feet. If all else fails use better wire. The wire most use is crap and thin as hell. We replaced one for a friend that kept getting eaten by moles with 14ga stranded. We put splice boxes in the ground so if it goes bad again it is between two boxes and can be fixed or replaced quickly and relatively cheaply. |