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请问为什么要装数字电视？

请问为什么要装数字电视？

浏览：56次 | 提问时间： 07-03 04:15

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3个答案

敲醒了江南 07-03 04:15

这是信号输送的必备条件，因为在国内所有的电视台都是国有的，信号的发送都是国家标准的，所以需要统一。且数字化是未来的趋势，网络化，数字化是必然的。

我拿他当命他当我有病 07-03 04:24

现在的商家和厂家就会忽悠人。目前在我国的民用市场，极少有真正的数字电视。而被营业员忽悠成数字电视的电视机，严格上并不是数字电视，应该叫“数字处理电视”。所谓“数字处理电视”，实际上就是在普通电视机里增加了数字处理电路。而本来电视接收到的电视信号的指标就已经下降很多了，再一经过低指标的数字处理电路处理之后，会使得图象指标变得更加的恶劣。

真正意义上的“数字电视”，显然应该具有数字接口，比如SDI、DVB射频接收等，然而民用设备极少出现这些接口，这主要应用于电视台的广播设备。

资料来源于网络，仅供参考，希望我的回答对你有帮助！！

要么爱要么滚 07-03 04:32

数字电视又称为数位电视或数码电视，是指从演播室到发射、传输、接收的所有环节都是使用数字电视信号或对该系统所有的信号传播都是通过由0、1数字串所构成的二进制数字流来传播的电视类型，与模拟电视相对。其信号损失小，接收效果好。而现在的人们在追求环保的同时又追求先进，数字电视是比较先进的，符合环保的概念，所以要装。

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