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长春机场受“黑广播”干扰 飞机险被引往错误着陆点

2017-04-22 13:51:53   央广网

据中国之声《新闻纵横》报道,以无线电波传送声音的广播,自问世以来,就成为我们生活中不可或缺的媒介形态。然而,近年来打开广播,经常会听到这样的声音:现在正赶上某某药品大型促销活动,还剩最后一天,现在拨打电话,只要99,明天就恢复原价999……而像这类未经主管部门审批私自设置的广播电台和电视台,就是我们俗称的“黑广播”。那么,黑广播到底有多“黑”呢?说小,它会骚扰我们的生活,说大,它会影响到航空秩序!

这并不是危言耸听,最近,长春机场排查出一起无线电干扰导航频率事件,在一次飞行校验中,由于黑广播的“干扰”,出现了“假航道”,引导飞机向错误的地点着陆,若是处置不当,可能机毁人亡。那么,“黑广播”究竟是通过什么样的手段来威胁我们的航空安全的?

这是一次不寻常的飞行校验,在飞机准备降落长春机场时,由于黑广播的“干扰”,出现了“假航道”,引导飞机向错误的地点着陆。

长春机场导航保障部主管张志新介绍说:“当时正在执行一个特殊科目,距离长春机场大概17海里的位置,左右35度画圆弧。接收导航信号时发现,有一部信号是收不到的,是被压制的。假航道非常强烈,而且校验的飞机也是跟随假航道往这个方向引导。幸好校验的飞机是飞行员手动控制,对长春机场的飞行非常了解,所以没有被误导。”

飞行校验是保证机场导航、雷达、通信、助航设施设备及飞行程序安全的一种措施。据介绍,民用航空的地面导航设备,需要每半年进行一次校验,主要是对地面导航设备的信号进行校准和对设备性能进行评估。而“假航道”可能导致飞机错误降落,甚至机毁人亡。

张志新指出,正常航道是飞机对准跑道延长线,这个方向有对着陆飞机的引导,但是假航道受黑广播的干扰,在正确的航道以外的区域,会出现对准跑道的引导,飞机就会跟随假的航道信息着陆。非常严重的后果就是飞机在机场跑道以外落地,机毁人亡。”

“黑广播”对飞行安全的影响主要有两个,一是导航信号被干扰压制,飞机接收不到正确的信号,甚至可能产生假航道;二是影响管制频率,这个频率被干扰,会导致飞行员和地面管制人员的联系中断,容易造成飞行冲突。

中国民航东北空管局黑龙江分局设备监控室主任李金淑认为,如果黑广播的存在造成管制频率受到干扰的话,机组可能无法听清管制指令,甚至与机组和管制员失去联系,对飞行安全的影响是巨大的。

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