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发展中的ＣＡＴＶ系统何淑贞一、ＣＡＴＶ由来及其特点ＣＡＴＶ是ＣｏｍｍｕｎｉｔｙＡｎｌｅｎｎａＴＶ的简称。４０年代为解决美国山村接收广播电视图像的质量问题，人们在接收电视信号好的地段架设天线，把接收到的信号传递给电视用户。由多个用户共用一付天线，这就形...
The development of CATV system He Shuzhen First, the origin of CATV and its characteristics CATV is CommunityAnlennaTV short. In the 1940s, in order to solve the problem of the quality of reception of radio and television images in the mountainous villages of the United States, people set up an antenna in a good area for receiving television signals and transmitted the received signals to television users. By a number of users share a pay antenna, which shaped ...