Signal can come from cable, satellite antenna, broadband networks, and terrestrial broadcasting.

信号可以来自有线电缆、卫星天线、宽带网络以及地面广播。

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The broadcasting equipment forces electrons to rush back and forth in the antenna at very high speed.

广播设备使得电子在天线里以很高的速度急剧往返。

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The calculation formulas of the electromagnetic field produced by the emission antenna of broadcasting and television emission towers and mobile communication stations are given.

本文给出了考虑大地的影响计算水平极化的广播电视发射天线和垂直极化的移动通信基站天线在空间产生的场的计算公式。

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If you rely on a TV antenna to receive your TV signal please note: Congress has passed legislation requiring "analog" TV broadcasting to end on February 17, 2009.

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