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1 黄河下游堤防查险报险专用移动通信网概况目前国内最大的黄河下游堤防查险报险专用移动通信网(28个基站、270个信道)自1999年6月30日相继开通并投入运行。作为紧密结合防汛的黄河下游堤防查险报险的重要防汛通信手段,覆盖了黄河下游河段干堤所有堤防、河道工程、险工、涵闸、水文(位)站点,并且以机动、灵活的组网能力和“黄河通”终端用户所具备的选呼(单呼)、组呼、群呼、动态重组、双工通话、自动漫游等方式的移动通信手段,大大改善了黄河下游堤防查险报险的通信条件,为黄河下游堤防查险报险、防汛指挥、抗
At present, the largest dedicated mobile communications network for embankment inspection and risk insurance in the lower reaches of the Yellow River (28 base stations and 270 channels) has been successively launched and put into operation since June 30, 1999. As an important means of flood control and communication for embankment inspection and risk insurance in close contact with the flood control, it covers all embankments, river works, dangerous works, culverts and hydrological stations in the lower reaches of the Yellow River. In addition, Capacity and “Yellow River” end-users with the selective call (single call), group call, group call, dynamic reorganization, double talk, automatic roaming and other means of mobile communication, which greatly improved the Yellow River embankment inspection The communication conditions of the insurance for the Yellow River embankment risk insurance, flood control, resistance