How Cable TV Works
Cable television is one of the biggest innovations in entertainment in the past century. It has widened people’s choices when it comes to TV viewing. Because of it, they won’t have to be stuck with what’s offered locally. Because of it, they can watch national (and even international) channels without any dropoff in signal. Perhaps, you’ve been wondering how Cable TV exactly works for all this time. This article would answer that question in a step by step process.
1. It all starts with the network itself. There are 2 ways in which the TV network sends data to their affiliate cable company. One is transmitting their programming via satellite, as widely practiced by global TV stations such as CNN. The network transmits TV signals, which is then intercepted then broadcasted by the cable network. This is particularly advantageous if the network’s location is far away from the cable company’s facilities. Another way TV networks can send their programming to cable networks is thru a series of fiber-optic cables. These cables receive signals from the network then transmit it to the cable company. The advantage of this method is there’s no delay in satellite transmission, even though it only possesses limited range.
2. How does the cable TV company send all those programming to your home? The answer is actually relatively simple. Cable companies scramble their signal so that thieves cannot intercept them. The signals they transmit are then sent to a network of cables. A network of “boosters” located at strategic places ensures that signal and electric current is not lost as they travel along the long line of cables. These cables can usually be found along pole lines in streets, together with electric and telephone lines.
3. Of course, the final destination of these signals is at your home or facility. The cable lines are split once more, and one of them enters your dwelling. All that you have to do is to connect the end of this cable into your television set or cable box, and you’re set to enjoy cable entertainment. But if more than 4 televisions would share from one cable connection, a small booster is installed to ensure optimal signal flow for multiple television sets. For “premium” channels, a cable box is needed to unscramble the signals sent by the cable provider.
Cable TV has evolved in leaps and bounds over the decades. And until now, it has stayed relevant. Hopefully, this article can give you an appreciation of how this technology works.