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                                              1. 高清时代网
                                                家庭影院 上门服务
                                                有线电视是我们大伙耳熟能详的一个词,也伴随着人们十几年的时间了。通常有线电视是通过一根白色的射频线来传输信号从而收看电视节目,而且在现在仍然是主要的家庭电视的接入方式。而最早的一批机顶盒也是通过这种接入方式,然后再由机顶盒的分量活AV线连接到电视机?#31995;摹?br />
                                                电视常识科普系列:一张图告诉你有线电视信号是什么

                                                然而采用有线方式传输的电视节目仍然属于模拟信号并不代表着能够直接收看高清节目,加了机顶盒仅仅是将模拟信号变成数字信号。现在有的几个正在测试的数字高清信号电视台的节目也仅仅是在测试,而要真正的收?#35789;?#23383;高清频道可能要收费。 返回高清时代首页>>


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