求翻译：基站使用的天线分为发射天线和接收天线，且有全向和定向之分，一般可有下列三种配置方式：发全向、收全向方式；发全向、收定向方式；发定向、收定向方式。从字面上我们就可以理解每种方式的不同，发全向主要负责全方位的信号发送；收全向自然就是个方位的接收信号了；定向的意思就是只朝一个固定的角度进行发送和接收。一般情况下，频道数较少的基站(如位于郊区)常采用发全向、收全向方式，而频道数较多的基站采用发全向、收定向的方式，且基站的建立也比郊区更为密集。是什么意思？

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The base station antenna is used for transmitting antennas and receiving antennas, and there is full and directed, in general the following can be 3 configurations: the omni-directional, the omni-directional mode; the omni-directional, a redirect; the orientation, a directed approach. Literally we c

The base depot use antenna divides into the transmitting antenna and the receiving antenna, also has omnidirectional and division of the directional, may have the following three disposition way generally: Sends omnidirectionally, receives the omnidirectional way; Sends omnidirectionally, receives t

Uses of the base station antenna is divided into transmitting antenna and the receiving antenna, and the distinction between Omni and directional, generally have the following three configuration modes: Omni-up Omni-directional way; full-up orientation; directional-up orientation. Literally, we can

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