在有线电视系统中，天线的任务是把空中的开路电视信号或卫星电视信号接收下来，送往系统中进行处理、传输和分配。其中接收VHF和UHF频段开路电视信号的天线称为电视接收天线。 电视接收天线是无线电视信号接收的重要组成部分，是无线电波进入有线电视系统的大门。天线有无源天线和有源天线两种，有源天线可使天线系统实现高增益、高信噪比接收。
... television reception aerial 电视接收天线 television reflect meter 电视反射功率计 television reflector lens 电视反射透镜 ...
基于74个网页-相关网页
... television receiver 电视接收机 television receiving antenna 电视接收天线 television reception aerial 电视接收天线 ...
基于64个网页-相关网页
... 电视接收系统噪声 TV receiver-system noise 电视接收天线 TV receiving antenna 电视接收系统噪声 TV receiving system ...
基于12个网页-相关网页
卫星电视接收天线 satellite television receiving antenna ; satellite TV antenna
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他家是附近惟一一家屋顶上支着电视接收天线的人家。
His is the only house in the neighborhood with a television antenna on the roof.
上世纪90年代中期开始，伊朗禁止私自安装卫星电视接收天线，后来这一禁令有所放松。
The 1990 s began, Iran is not allowed installed satellite TV receiving antenna, later the ban to relax.
建议把结构简单的对数周期天线，用于CAT V技术，并给出VHF全频道电视接收天线的实例。
Concerning the problem of application, the author suggests to use the simple LP antenna in the techniques of CATV, and a practical design for the receiving antenna covering all VHF TV channels.
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