Study on One Mile SART

From a point that should be improved further in present SART (Search and Rescue Radar Transponder), the size, the number, and the cost were enumerated. Some types of SART developed to solve them in Japan are introduced in this paper. That is automatically operating SART, circular polarization SART and so on. In the process, it was clarified that circular polarization is effective. In addition, One Mile SART using circular polarization was mentioned. It is SART miniaturized instead of limiting the function, because all crews and passengers can always carry the small and light SART. The parts were made for trial purposes and the performance was confirmed.