日本邮政省电波研究所、国际电信电话公司(KDD)和日本航空公司(JAL)三者将从今年秋季开始,利用国际海事卫星连接北太平洋航线上的 JAL 大功率客机和 KDD 茨城卫星通信地面站进行通信实验和电话业务示范。到目前为止,国际航线上的飞机,除短波通信以外,还没有其它通信手段,因此使航空交通管制受到一定限制,而且由于短波通信质量不 Japan’s postal provincial radio wave research institute, KDD and Japan Airlines (JAL) will begin this fall with Inmarsat JAL high-power passenger aircraft and KDD Ibaraki satellite communications ground stations connecting the North Pacific routes Conduct communication experiments and telephone business demonstrations. So far, airlines on international airlines, in addition to shortwave communications, have no other means of communication, so air traffic control is subject to certain restrictions, and because the quality of shortwave communications is not