日本新干线电话使用 LCX 方式,该方式是利用敷设在新干线旁边的同轴电缆漏泄的电波来进行通信的。它是在适当的距离内装接力机,从接力机经基地台通过载波同轴电缆,由控制台和普通的通信网接通。利用这种方式,不用电波就可在线路所及的长距离内直接进行无线通信,但必须在全线路内敷设漏泄同轴电缆。每台接力机和基地台都可以分配通话线路,但在移动台加识别码,控制就比较难。这是因为使用漏泄电缆时,不能保证那么多的信道。 Japan’s Shinkansen calls use the LCX method, which uses the radio waves leaked from coaxial cables laid next to the Shinkansen. It is within the appropriate distance built-in relay from the relay through the base station through the carrier coaxial cable from the console and the ordinary communication network connected. In this way, wireless communication can be performed directly over the long distances covered by the line without radio waves, but leaky coaxial cables must be laid over the entire line. Each relay machine and base station can assign call lines, but add the identification code in the mobile station, the control is more difficult. This is because using leaky cables can not guarantee as many channels.