What is the frequency of digital television?
The frequency of digital television is a specific location in the radio spectrum where digital TV channels are transmitted. Common analog TV channels are accepted by an antenna search at one frequency in the range of ultra high frequency (UHF). The difference between the frequency of analog TV and the frequency of digital television is that digital signals are compressed into "multiplexes". These multiplexes contain a number of TV channels - usually around eight - found at one frequency. That is why digital frequency requires a special decoder to reproduce images and sound from the original signal. TV
is transmitted via radio waves that are collected by antennas and then sent to a television file that reproduces the signal received as sound and visual display. Radio waves are basically formed by fluctuations in an electromagnetic field. The specific properties of each turnover code code different pieces. Static is found on television,Because the remaining radiation from the Big Bang is all around us, and when it is not pointed to a particular frequency, the radiation of the Big Bang is picked up by antennas. TV is trying to display it as a TV channel, but everything it produces is incomprehensible statics.
The main difference between digital television frequency and analog television frequency is that digital TV channels are compressed into multiplexes. Digital TV antennas still collect signals from the radio spectrum in the same way analog TV antenna, but the information is coded. These new multiplexes contain transmission information for several TV channels that are compressed into one more efficient signal. This means that if people cannot receive a channel on a digital TV, they will probably have trouble receiving several channels. These are channels in the same multiplex as a problem.
old TVs and antennasThey do not understand new signals of digital television frequencies due to multiplexes. They will try to understand the signal in the same way as the old analog signals have been transmitted, but the information is basically in another language. It is basically as a time-traveler of the 12th century who is trying to speak to modern people. Digital TV boxes and TVs with built -in digital receivers are able to understand this new language and convert it into television channels.
Modern frequency of digital satellite television works in the same way as the frequency of digital television, except that the information is transmitted by the satellite instead of the transmitter bound to Earth. The signal is picked up by a bowl that is shaped as a parabola to focus all the information obtained to one point. Satellite boxes decode this information in the same way as digital boxes.