subject: Digital Channels Benefits And Disadvantages
[print this page] When we penetrate in the sphere of one high developed world, we have access to many and incredible benefits. Nevertheless, there are still people who reckon something else. In that case we can account the pros and cons about definite type of advanced technology and after that to see if it is worth it.
One of these high tech products is television. De facto, its development derives from communication technology like transportation media, used methods and devices. So in this sense in the sections that you will see below are stated the main benefits and drawbacks of the digital channels.
First and utmost, it is best to scrutinize the media that is responsible for the transportation of the digital signal. However, what we need to know before that is how exactly this signal is derived. Indeed, its foundation is the analogue one. The difference is that the digital broadcasting is with bigger capacity and better quality, because the redundant information from the analogue transmitting is removed. Moreover, the digital signal is compressed by procedures what the scientists call quantization. There is one more thing that I missed to say. Before the quantization the analogue signal undergoes series of different treatments. First, the sound and video are coded and after that modulated. Second, they are put in channels from where they become subjects of the digitalization. Henceforth, the digital signal is protected with great number of different noise immunity codes. Then all the channels that have to be distributed to the subscribers are multiplexed in one common channel. The types of media which are available are cable and wireless. The first one is represented by coax or optic cables. The coax medium is the main material that is used in the video broadcasting. But the optic cables have better quality, bigger capacity and further range of the distance. The air media is expressed in diverse antennas. There is one wireless media that played enormous role in the digitalization of the signals, the satellite one. Virtually, although these sputniks are able to distribute analogue and digital signals, better reliability and assurance of the signal is conceivable with the digital transmitting.
Second, the methods that are used in the digital channels are quite complicated. Furthermore, they require the presence of specialist and additional payment, but for the end user this doesnt matter. Therefore, this is one more big plus for this new penetrated technology.
Last, the devices that are used are again more formidable. On the other hand, this complication is for our pleasure, because indebt of it we can watch favourite shows with perfect quality. What is more, the television receivers are with bigger size but thinner and the weight is little.
