Do not fly at the limits of video. if you see noise in your picture, turn around and buy a higher-gainantenna before going out further.
永远不要在图传的生效界线停顿，假使你看到噪点请立刻华美转身，回淘宝去换增益更高的天线。
2
High gainantenna is required in the long distance communications and high resolution radar applications in which reflector antenna is the most widely used one.
在远距离通讯和高分辨率雷达的应用中，要求天线具有高增益，反射面天线是使用最广泛的高增益天线。
3
These signals provide an important reference of the gain of antenna, the time reference, the phase reference and the frequency of carrier wave for generating stimulant echo signal.