抄録
The installation of a VHF radiotelephone is required if more than 100 tons of gross tonnage. However, in the case of the other small ships were arbitrary. For that reason, it was difficult to install a VHF radiotelephone easily with a small ship, and to establish a mutual understanding by using a VHF radiotelephone between all ships. By partial revision of the Radio Law etc. in October, 2009, a VHF radiotelephone can be installed with ease than before. In this study, first of all, these data were clarified the actual condition by the field survey in a fishery cooperative association and a marina, and investigated the actual condition of the issue of radio operator license and radio station license using databases of Ministry of Internal Affairs and Communications. Secondly, these data were acquired by conducting the experiment which used handy type of a VHF radiotelephone between GINGAMARU and TOBAMARU, NIPPONMARU and a personal water craft (for leisure). As a result, these were revealed that the range which can communicate a VHF radiotelephone of handy type, and some remaining regulatory issues etc.
