Microwave Maintenance Experience share

Microwave Maintenance Experience shareBy : Tu Qiang15 Dec 2009 2006, ZTE Corporation. All rights reserved.RX level lower

IF cable connector problem

RF cable or HYB problem

E1 channel alarm

ODU faulty

IDU faultyOrdinary Problem : 2006, ZTE Corporation. All rights reserved.All of these problems can use PNMTj and Multimeter check the alarm; voltage and resistance to confirm.Ordinary Problem : 2006, ZTE Corporation. All rights reserved.For easily to know how to solve the Microwave problem, this document will according to the parameter and alarm find the problem, and then give the solution.Parameter and Alarm : 2006, ZTE Corporation. All rights reserved.Parameter and Alarm :1: Metering

2006, ZTE Corporation. All rights reserved.Parameter and Alarm :1: Metering

The parameter of metering is very important and from the parameter can know link work normal or not.

TX Power

RX Level

ODU Power Supply

2006, ZTE Corporation. All rights reserved.1: Metering1-1: TX Power

ODU TX PowerConfiguration: 1+0

ODU TX Power = TX Power Metering + |MTPC TX Power| (TX Power Metering is the red square; MTPC TX Power in the link summary can find the value)

Normal: +20 dBm