Having sold electric fences for a living, I can tell you that the recorded
ticking on the ARRL site is not from an underground dog fence. The underground
dog fence wires use a continuous RF transmitter loop and a receiver on a dog
collar. It only shocks the dog when he goes across the underground wire. That
ticking in the ARRL mp3 is from an above ground electric fence. Two important
things. There will generally be no noise from an electric fence unless there
is an arc somewhere. Most often due to bad connections somewhere, or the high
voltage wire is touching something that is grounded. Most people using these
things have very little understanding of electricity and how it flows. I have
seen installations where people just staple the wire to a wooden fence and then
wonder why it did not work when it rained. These things operate at Kilovolts
and up. Second important thing is that some cities or municipalities actually
have ordinances against electric fences being used w
ithin their boundaries. It might be worth checking with local authorities.
This could be used as a last resort. Some people here in the Pacific NW
actually have electric fences around their backyard fish ponds to keep the
Racoons from eating their often expensive pond fish. No dogs involved so be
sure and check things out before any direct accusations.
Lee K7TJR Oregon
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