GM338车载台发射电路故障维修技术浅析

Analysis of repairing technology for the launching part of GM338 mobile radios

GM338车载台是摩托罗拉公司生产的一款车载通讯电台,广泛应用于地震勘探作业现场的语音通话和源激发信息的传输。本文在对GM338发射电路部分的工作原理进行分析的基础上,针对其发射功率低的故障原因,采用分析和试验验证相结合的方式进行说明,给出维修思路、具体步骤和判断方式,可为GM338车载台的维修提供技术参考。

The GM338 mobile radios is a vehicle-mounted communication station produced by Motorola,which is widely used in voice calls and source stimulates the transmission of information source excitation control at the seismic prospecting operation site.Based on the analysis of the working principle of the GM338 transmitting circuit part,this article uses a combination of analysis and experimental verification to explain the failure cause of its low transmission power,and gives the maintenance ideas,specific steps and judgment methods.It provides technical reference for the maintenance of GM338 mobile radios.