卫星广播电视和地面广播电视的主要差别刘民生随着卫星技术和电子技术的飞速发展，我国已进人利用地球同步卫星进行电视广播的新时代。卫星广播电视使用频率高．传输容量大．覆盖面积大．而且信号转送质量高．造价低，因而对电视信号广播和电视信号接收都提供了很大方便。... The main difference between satellite radio and television and terrestrial radio and television Liu Minsheng With the rapid development of satellite and electronic technologies, our country has entered a new era of using the geostationary satellite for television broadcasting. Satellite radio and television are frequently used. Transmission capacity. Coverage area. And signal transfer high quality. Low cost, which provides a great convenience for television signal broadcasting and television signal reception. ...