光纤和光缆通信基本知识，也是华为的.rar-fiber and optical cable communication basic knowledge, but also Huawei. Rar

本文档是PPT，简述以下内容： 射频基础知识 GSM手机基础知识 GSM手机射频主要器件介绍 GSM手机主板 GSM手机测试常用射频仪表 校准和综测 仿真技术 天线基础-This document is a PPT, outlined the following: basic knowledge of GSM RF GSM mobile phone basics of the main components introduce GSM RF GSM mobile