What Is Cable Tv?

Cable TV is the most common way to deliver a television package that is paid by subscription

. Cable TV first became available in 1948 and was initially used to send out over-the-air commercial broadcasting to those in remote areas. However, because the providers had to use amplifiers to boost the signal it was plagued with problems, which meant that the further along the line you were, the worse the picture you got. Of course, thats if you actually manage to get any channels at all.

Early in the 1950s cable TV providers started to experiment with how they could use microwave transmissions and towers to trap the signals from distant stations. This enabled them to provide television channels to people that were outside of the standard range and for the first time cable TV was used to enhance peoples television viewing.

As the number of options for programmes increased, so did the bandwidth capability of cable TV systems. Recent additional technological advances include fiber optics and analog-to-digital conversion, which has helped to improve the features that are available, the broadcast quality and has increased the number of channels available to view on cable TV. The biggest advantage of fiber-optic cable is that it is not as sensitive as coaxial cable and does not suffer the same problems with signal loss. This has allowed suppliers to reduce the number of amplifiers needed to send pictures to the farthest corners of the country, which has helped to improve their reputation for unreliability. Another benefit that resulted from the introduction of fiber optic cable TV was the ability to be able to provide more services and to customize a users package. Because a single cable could be used to supply up to 500 households, it was found to be the ideal way to provide local area network, thus seeing the advent of cable internet access via cable modems and the introduction of bundles.

It was demonstrated in 1989 that a possibility existed to convert an analog signal to digital, allowing a potential 1 000 channels to be viewed by the subscriber of cable TV packages. This also enabled the suppliers to introduce scrambled channels, which allowed them to charge for bolt on channels to be added to a subscribers package and encrypt signals, thereby ensuring that those that are not paying for the service they offer cannot tap into it illegally, without signing up to a contract.

There are obviously alternatives to cable TV, such as satellite TV. However cable TV is less intrusive, you dont need to place a satellite dish on your roof for a start, and as a number of providers are potentially able to use the cable that provides your TV package, the possibility exists for you to compare the available packages and pick the one that suits you.

So now you know the origins of your viewing pleasure (or exasperation), you have a little more idea where you stand when contacting your local providers to see which cable TV deal is going to give you the best deal for your money. Remember to ask about special offers and bundles that might save you even more.

by: Sammy Carter

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