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北京昌平区安装卫星电视,提供一站式服务_北京华创科技有限公司

北京华创科技有限公司

主营:北京卫星电视安装,石景山卫星电视小锅安装,酒店卫星电视安装

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北京昌平区安装卫星电视,提供一站式服务

2025-07-01 05:00:01  1316次浏览 次浏览
价 格:面议

安装接纳系统是由:抛物面天线、馈源、高频头、卫星接纳机构成一套完好的卫星接纳站。

1、抛物面天线是把星空的卫星旌旗灯号能量反射集聚成逐个个核心。

2、馈源是在抛物面天线的核心处设置一个惧卫星旌旗灯号的喇叭,称为馈源,意思是馈送能量的源,要求将集聚到核心的能量悉数搜集起来。前馈式卫星接纳天线根本上用大张角波纹馈源。

3、高频头(LNB亦称降频器)是将馈源送来的卫星旌旗灯号进行降频和旌旗灯号扩大然后传送至卫星接纳机。高频头的噪声度数越低越好。

解决雨衰的方法有:

1 加大卫星天线的尺寸,使收集到的卫星信号更强,降低因雨衰而断讯的机率。

2 加大卫星发射功率,使平均的讯号场强加大。

避开建筑物的遮挡

在天线指向卫星的方向上应该没有树木、房屋、铁塔、高压线及高山等任何物体遮挡。一般来说,天线指向周围遮挡物的连线与天线指向卫星的连线之间的夹角应以大于5°为宜。

注意天线防风

C波段卫星电视安装天线由于口径较大,一定要注意天线底部结构强度,一般情况下,应保证天线在12级台风下不受破坏。避免天线座落在两个高大建筑物之间,因为刮风时此处的风力会比其他地方更大。KU波段天线的口径较小,相应的风阻也小,选址条件要宽裕得多,但也应安装在风力小的地方。

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