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Quad Modulator:digital TV modulator for use

source:http://www.dvb-tmodulator.com/news/62.html
Release time:2017-07-15
    Now digital TV modulator application more and more control, into the market its rapid development, to achieve the digital, information technology trends.
    Is there any kind of product on the market now? Quad Modulator In fact, there are such products on the market early, probably classified as two: the first is the home version of the use of digital TV modulator, the second is the enterprise version of the use of digital TV modulator; The difference is that the home version of the digital TV modulator can only achieve all the TV to watch the same TV program, that is, as long as the set-top box to select a TV channel, all TV can only watch the same channel, and business Version of the digital TV modulator can solve all the TV can only watch the same channel at the same time the problem, the main features of the product is: to truly achieve each TV share to watch different channels of digital TV programs, thus solving a The TV must be equipped with a digital set-top box. So what is the principle of digital TV modulator's TV sharing?

    Quad Modulator Before explaining the sharing principle of a digital TV modulator, let's take a look at how the TV can watch digital TV programs. We all know that now watch digital TV programs must install a digital set-top box Caixing, in fact, the role of this set-top box is to receive radio stations digital signals (images and sound signals), and then set-top boxes to these digital signals to decrypt and convert to analog Signal, and then sent to the TV. From here we should know, in fact, TV is really playing on the analog signal, rather than digital signals. The real digital signal is from the radio station to your home set-top box, and the set-top box to the TV is the converted analog signal.


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