A fender finder that includes a remotely controlled, extendable and retractable standard portion that offers continuously variable position control. The communication location subsystem may monitor communication of mobile phones. A speaker is connected between the first and second push-pull circuits. The conductive end structure is electrically connected between an end of the first outer conductive structure and an end of the second outer conductive structure, and the conductive end structure is spatially separated from an end of the inner conductive structure at the surface of the substrate.