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利用ＦＭ（调频）副载波的寻呼系统和高速双向移动数据通信系统佘其炯日本电信技术协会（ＴＴＣ）最近向日本邮政省提交了利用调频（ＦＭ）副载波的寻呼系统和高速双向移动数据通信系统的技术规范。１．ＦＭ副载波寻呼系统（１）由于是在ＦＭ无线电波上复用，可以共享ＦＭ...
Paging System and High-speed Two-way Mobile Data Communication System Using FM Subcarriers She Qiong Japanese Telecommunications Technology Association (TTC) recently submitted a paging system using a frequency modulation (FM) subcarrier and a high-speed two-way mobile data communication System technical specifications. 1. FM Subcarrier Paging System (1) Because it is multiplexed on FM radio waves, FM ...