The wireless alignment system for railway special line in Huangling Mining Area adopts the 450MHz frequency band same-different frequency independent synchronization mode.The downlink frequency is 468.825MHz and the upstream frequency is 458.825MHz. In view of the system upgrading needs, this paper analyzes the upgrading from the upgrading principle, system selection, interval coverage program and its ancillary facilities.%黄陵矿区专用线无线列调系统采用450MHz频段同、异频独立同步方式,下行频率为468.825MHz,上行频率为458.825MHz.本次针对系统升级需要,从升级原则、系统选型、区间覆盖方案及其附属配套设施方面进行升级分析和研究.
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