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当前,有线电视台前端获得收转的广播电视信号源有两种,一是利用卫星地面接收站接收卫星传输的信号,二是利用开路天线接收开路信号。由于省级电视台和中央电视台基本是通过卫星传输信号,且采用了数字压缩新技术,有线电视台
At present, there are two kinds of radio and television signal sources for receiving and reposting the front end of a cable television station. One is to use a satellite ground receiving station to receive satellite transmission signals and the other is to use an open antenna to receive an open signal. Since provincial-level TV stations and CCTV basically transmit signals via satellites and adopt the new technology of digital compression, cable television stations