Three orthogonally positioned antennas used to receive a boundary signal from an electronic animal containment system transmitter irrespective of its position to the boundary signal

ELECTRONIC AND BATTERY-OPERATED MEASURING AND DETECTING EQUIPMENT, NAMELY, TAPE MEASURES, STUD SENSING FINDERS, METAL DETECTORS, HIDDEN OBJECT DETECTORS, BURIED OBJECT DETECTORS, CONCRETE REINFORCING BAR LOCATORS, VOLTAGE DETECTORS, TRACERS, LEVELS, PLUMBS, AND INCLINOMETERS