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Our invisible fence (stubborn dog) Wire layout is a loop that broadcasts in the 10.56 kHz range. The wires need to be a minimum of 4’ apart for a consistent reaction from dog collar, so that the signals from the two wires do not interfere with each other. I would like to bring that distance down to a few inches. Any suggestions for an inexpensive solution?
They say that putting one of the wires inside a metal conduit will not work to block or attenuate the signal and remove the interaction between the two wires; nor will wrapping one of the wires in aluminum foil. I tested the foil for fun and confirmed.
Physical problem: we live in a townhouse with a narrow backyard and no physical fences allowed between properties. The fence where has to go in a full loop, so on those two sides of the property, the wire goes out and comes back, what they call a double loop. With 4 feet between the wires, I would lose 8 feet of a 40 foot wide backyard.
I cannot trench down more than a few inches, so trying to bury one wire deeply is not a solution. I have considered taking the return wire up over the roof of the townhouse so that there is only one wire, but that will be frowned upon.
FYI, twisting two wires together at 10 twists per foot is supposed to cancel out the signal from both wires. That works pretty well, but not perfectly. And, of course, then the dog could just walk over the boundary. I have tried making a “quadruple loop“ on one side, and twisting three of the wires together to see if they would cancel out and not interfere with the fourth wire. That did not work: the three twisted wires, when tested standalone, still cause the collar to react, and also interact interact with the fourth wire in a way that creates it inconsistent boundary
Thanks in advance
They say that putting one of the wires inside a metal conduit will not work to block or attenuate the signal and remove the interaction between the two wires; nor will wrapping one of the wires in aluminum foil. I tested the foil for fun and confirmed.
Physical problem: we live in a townhouse with a narrow backyard and no physical fences allowed between properties. The fence where has to go in a full loop, so on those two sides of the property, the wire goes out and comes back, what they call a double loop. With 4 feet between the wires, I would lose 8 feet of a 40 foot wide backyard.
I cannot trench down more than a few inches, so trying to bury one wire deeply is not a solution. I have considered taking the return wire up over the roof of the townhouse so that there is only one wire, but that will be frowned upon.
FYI, twisting two wires together at 10 twists per foot is supposed to cancel out the signal from both wires. That works pretty well, but not perfectly. And, of course, then the dog could just walk over the boundary. I have tried making a “quadruple loop“ on one side, and twisting three of the wires together to see if they would cancel out and not interfere with the fourth wire. That did not work: the three twisted wires, when tested standalone, still cause the collar to react, and also interact interact with the fourth wire in a way that creates it inconsistent boundary
Thanks in advance
