Abstract: Disclosed herein are systems and methods of detecting objects. In particular, a transmitter antenna is disclosed comprising one or more coils. Alternating current may be run through the one or more coils of the antenna to create an electro-magnetic field (“EMF”) which will, in turn, induce an alternating current in objects near the EMF(s). As a result of the induced alternating current in the hidden object, a second EMF is generated around the hidden object which may be detected by a receiver, indicating the location of the hidden object. The transmitter antenna may be elongated and flexible to permit deploying the antenna in a configuration facilitating location of all utilities in an area of investigation with little or no relocation of the antenna.