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发射机改频(射频系统改造)是一个技术性很强的工作,关键还有机器射频检测电路的调整,尤其是发射机的驻波比及网络零位必须调好,才能确保机器安全。此改频工作步骤和方法,有利于中波台站维护和检修时借鉴。
Transmitter frequency conversion (RF system transformation) is a highly technical work, the key is the machine RF detection circuit adjustment, especially the transmitter standing wave ratio and network zero must be adjusted in order to ensure the safety of the machine. This frequency conversion work steps and methods are conducive to the maintenance of China Railway Station and maintenance reference.