FIELD: agriculture; machine building.SUBSTANCE: invention relates to the field of agricultural machine building, in particular to the machine-tractor units movement control automation devices. Navigation inductor for the robotic agricultural machines and machine-tractor units location consists of race wires, jumpers between them and the alternating current source. First conductive circuit race wires are connected in series in a zigzag pattern. Second identical current-carrying circuit race wires are combined with the first circuit race wires, and the jumpers are located between the jumpers of the first circuit. Second conductive circuit is connected in series or in parallel with the first conductive circuit in such a way that the currents of the combined race wires of both circuits are unidirectional, and the currents of the jumpers are multidirectional.EFFECT: such design solution ensures an increase in the navigation magnetic field uniformity along the race wires to improve the high straightness of the mach