800B宽带机维修培训资料
Maintain training information of broadband machine 800B

1、800B宽带直放站原理框图：

Principle frame chart of broadband direct shoot station 800B

1原理框图

Principle frame chart

接施主天线：Connect user’s antenna
双工器： Duplexer
低噪放：Low noise power
前向中频选带单元: Unit for selecting band of former intermediate frequency
图5-1 CDMA系列无线全频直放站原理框图: Chart 5-1: Principle frame chart of wireless full

frequency direct shoot station of CDMA series

2上行增益分配

Gain distribution of upper line
下面以800B1为例。
For example as 800B1 below.
上行总增益：80±3dB

Total

gain of upper line

当前页:1  计:页  每页记录:1  4个记录   [2]  (1)   跳转: