the coiled section 147 with on the order of 3 to 5 turns over the u215c inch length of the tube 145 this arrangement has been found to be self resonating at approximately 433 mhz the dimensions of the tube and dielectric and the antenna wire as well as the number of turns in the coiled section 147 clearly can be varied and adjusted by one skilled in the art to obtain the resonance at the desired frequency and the above noted dimensions are provided only as an exemplary embodiment fig4 is an enlarged view of the lower section of the antenna 102 showing the portion of the antenna below the fm self resonant circuit 122 successive turns of the wire 130 below the fm self resonant circuit 122 are wound around core 131 with approximately three inches per revolution and above the fm self resonant circuit 122 are wound around the core 131 with approximately 1 to 1 5 inches per revolution the fm self resonant circuit 122 consists of 35 to 40 turns of the enamel coated wire 130 with successive turns of the wire disposed immediately adjacent one another and wound on the core 131 over a 2 inch tubular section.