{"meta":{"id":"https:\/\/api.iclient.ifeng.com\/ipadtestdoc?aid=ucms_7zLAnqgXrX0","type":"doc","o":"1","documentId":"ucms_7zLAnqgXrX0"},"body":{"newStatus":"1","documentId":"ucms_7zLAnqgXrX0","staticId":"ucms_7zLAnqgXrX0","title":"基站天线横着放是怎么回事?","shareTitle":"基站天线横着放是怎么回事?","thumbnail":"http:\/\/d.ifengimg.com\/w150_h106_q100\/x0.ifengimg.com\/ucms\/2020_36\/A46611B51E6E8337D5C13666BAA6057219B6D4DF_w698_h392.jpg","source":"","author":"","editorcode":"weMedia","editTime":"2020-08-29 22:44:32","updateTime":"2020\/08\/29 22:44:32","wapurl":"http:\/\/\/\/feng.ifeng.com\/c\/7zLAnqgXrX0","introduction":"","wwwurl":"http:\/\/\/\/feng.ifeng.com\/c\/7zLAnqgXrX0","commentsUrl":"ucms_7zLAnqgXrX0","commentCount":0,"text":"
通信人都有个老毛病<\/p>
没事喜欢拍基站天线<\/p>
拍过很多天线<\/p>
基本都是竖着安装的<\/p>
...<\/p>
<\/p>
但最近发现<\/p>
竟然有基站天线是<\/p>
横着安装的<\/p>
...<\/p>
<\/p>
原以为是工程施工不规范<\/p>
<\/p>
或者是被大风吹倒了<\/p>
<\/p>
但后来发现<\/p>
这样横置天线还不少<\/p>
...<\/p>
<\/p>
很多横置天线走线也非常规范<\/p>
<\/p>
<\/p>
显然是故意这样安装的<\/p>
<\/p>
于是乎<\/p>
问了一些优化老司机<\/p>
有人说<\/p>
是为了覆盖飞机<\/p>
有人说<\/p>
是为了覆盖高楼<\/p>
也有人说<\/p>
是为了覆盖河道、桥梁、隧道...<\/p>
还有人说<\/p>
是为了便于鸟儿栖息<\/p>
这就纳闷了<\/p>
天线到底为什么要横着安装呢?<\/p>
最后<\/p>
有个老司机给我画了一张图<\/p>
...<\/p>
<\/p>
<\/p>
他说,一般天线是竖向放置的,其水平平面的半功率角为60到90度,而垂直平面的半功率角为8到15度,水平平面的波束宽度远大于垂直平面的波束宽度。<\/p>
而现在横向放置后,用水平方向代替垂直方向,垂直平面的波束宽度就远大于水平平面,从而可以满足高层建筑覆盖需求。<\/p>
他还说,如果竖向放置,通常只能覆盖7-8层楼,往往会导致高层建筑信号漂移,不稳定;而横向放置后,可覆盖20层楼以上,从而可达到覆盖整个高层建筑的目的。<\/p>","img":[{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/92673B1FAD07F2CA644927D446254148B9E6101A_size45_w898_h702.jpeg","size":{"width":"640","height":"500"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/F89451EFDC19792F4AA52966498B3648DF7F9B1A_size72_w1080_h810.jpeg","size":{"width":"640","height":"480"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/8CA5F110ABF4C5504455346794161FBB5D0E9921_size71_w748_h561.jpeg","size":{"width":"640","height":"480"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/99C7A3AE4921CB7033F99B8BBC7C00532C2520BF_size39_w1080_h638.jpeg","size":{"width":"640","height":"378"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/6CF8A0E3889C3258EEE26948227B1561087C0141_size182_w1080_h1019.jpeg","size":{"width":"640","height":"603"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/F66414121796B1F8677364B4607DCDC0CB8B9F05_size45_w1080_h832.jpeg","size":{"width":"640","height":"493"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/D84F26C184009423B7D256EE67DE5847A43956BA_size41_w1080_h810.jpeg","size":{"width":"640","height":"480"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/E64B63FBE00689E252B6726348D1B00FBDCE8491_size79_w1080_h818.jpeg","size":{"width":"640","height":"484"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/ECED2D4314E0F3255044F9754C110EA901EE57A1_size48_w1080_h671.jpeg","size":{"width":"640","height":"397"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/3C440935D13E3908ED2DA75A9EB450FB1E59A216_size52_w1080_h699.jpeg","size":{"width":"640","height":"414"}}],"summary":"通信人都有个老毛病没事喜欢拍基站天线拍过很多天线基本都是竖着安装的...但最近发现竟然有基站天线是横着安装的...原以为是工程施工不规范或者是被大风吹倒了但后来","sharesummary":"通信人都有个老毛病没事喜欢拍基站天线拍过很多天线基本都是竖着安装的...但最近发现竟然有基站天线是横着安装的...原以为是工程施工不规范或者是被大风吹倒了但后来","commentType":"0","wemediaEAccountId":"1440829","showclient":"0","shareurl":"https:\/\/ishare.ifeng.com\/c\/s\/v002--4BUXByDyj3ObKXJtB6QmV3mZeC8R59RY-_dmMp2js50__","praise":"0","like_num":"0"}}