conditions over radiotelephony (can be heard with radios capable of receiving transmissions of 288kHz - 316kHz, 1670.5kHz or 2019kHz) and through its telephone service.
IV. Use of Natural Energy
Because navigational aid facilities are located at sea and on remote islands, capes, reefs, shoals, etc., some have difficulty securing a commercial source of electricity due to the special conditions of their geographic location. Therefore, it is necessary to secure an alternative energy source that can take the place of commercial electric power.
From the past, JMSA has taken into consideration reducing the burden on the environment when it selects an alternative energy source. Consequently, it endeavors to expand its use of natural energy sources, such as wind, solar, or wave generated electricity.
