An optically detectable security marker for emitting light at a pre-selected wavelength. A horizontal platform is mounted to the underside of a vehicle frame and is attached at one end to the vehicle bumper. The portable device body includes an upper case and a lower case, each having a cavity. The polarization technique allows the elements of the two antennas to share an aperture without degradation of function. Either of the first and second service termination points is accessed to evaluate an end-to-end performance of the service based on a comparison of the service PRM generated by the first service termination point with the service PRM generated by the second service termination point. The refined product is employed either as such as a concentrate or after drying to give a powder.