Dual sensed locating systems and methods

A system for locating buried objects, comprising:

• a push-cable including an electrical conductor;
• a sonde mechanically coupled to the push-cable for generating a dipole magnetic field sonde signal at a first frequency;
• a transmitter electrically coupled to the push-cable electrical conductor for providing a current signal to the push-cable to generate a line trace current signal, wherein a circular magnetic field signal is generated from the line trace current signal flowing in the push-cable;
• at a second frequency different from the first frequency, resulting from current flow in the electrical conductor;
• and
• a locator comprising:
• a receiver module configured to receive the circular magnetic field signal and the sonde dipole magnetic field signal and provide a corresponding line trace output signal and a sonde output signal;
• a processing element configured to:
• receive the line trace output signal and the sonde output signal and generate, based at least in part on the line trace output signal and the sonde output signal, information associated with a buried object, wherein the information associated with the buried object includes determining an indication of ambiguity and providing the indication of ambiguity on an output device when the measured sonde dipole magnetic field signal axis and the push-cable circular magnetic field signal axis are not aligned as determined by a difference in alignment between the axes;
• and
• an output device operatively coupled to the processing element to provide a representation of the information associated with the buried object.