江苏南京快三开奖结果

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Tunnel signal coverage solution

Come:Lintratek  date:2015-12-08

江苏南京快三开奖结果      Tunnel signal coverage solution


      Most tunnels are signal blind , and therefore need a dedicated tunnel coverage solutions. Coverage tunnels according to the tunnel function can be divided into: highway tunnel signal coverage, railway tunnels signal coverage , subway tunnels signal coverage and son on, according to the structural characteristics of the tunnel can be divided into: straight tunnel, more curved tunnel, short tunnels, long tunnels, single track tunnel , double-track tunnels. A variety of environments has its own characteristics, for a variety of application environments need to provide different solutions.
 
      We have a 4 km long road tunnel as an example to give a solution. Necessary accessories Engineering: lintratek phone signal amplifier , eight elent yagi antenna, base station antenna. First, select a strong signal place to install the yagi antenna,and then install the base station antenna near the tunnel portal,the direction of antenna is alignment of the tunnel. Finally, use the cable connect the yagi antenna and amplifier , then connect the amplifier with base station antenna. If the tunnel is more than 4 kilometers or inside the tunnel bends are more or corner is large can use two-way radio solutions.