系统线路连接设计，部件安装结构设计和分析，改装包器材设计和制造，适航取证测试，包括系统功能测试、电磁干扰测试及飞行测试。System circuits connecting design, structural design and analysis of components and parts installation, design and manufacturing of modified package equipment, airworthiness certification test,  including system functional test, EMI test and flight test.