Cable TV
This provides a cable outlet in your homes. To then access the cable television
services, you need to subscribe to a cable company which will then connect a
simple coaxial cable or an RF cable from the wall outlet to your television
sets. You then have to program your cable ready television sets to receive the
cable channels. In case you do not have a cable ready television (essentially a
newer model) then you need to install a device called a converter box, and you
can then receive cable television with the help of the converter.


All this helps cable television to bring you more channels from around the world
instead of limiting you to local channels. In cable television, the signals are
sent through cables and not through the air, thus enabling much better quality
of reception than off-air reception of local television. The television signals,
being via cable, are not disturbed by trees, buildings, or other surface
impediments.
Cable television is thus brought into your homes and the cable television
companies can offer you many international channels in addition to your local
ones.

Cable TV works.
1. All around the world, a multitude of television programs are produced and
broadcast.
2. Satellites which orbit the earth's path are at a fixed position some
22,300 miles above the surface of the earth. Television programs from across the
globe are transmitted to these satellites.
3. The signals are then sent back down to the earth to the local cable
satellites serving each area.
4. Many miles of cable network are installed
either underground, or on the same utility poles which carry your regular
telephone and electric services.
5. The control center of the cable
television companies, known as the 'head end', processes the satellite signals
in combination with the signals from the local television stations and other
such resources.
6. Finally, these signals are relayed
into your homes through the extensive network of the previously laid cables.
|