HomeSearchRegisterLog in

Share
 

 Cable television

Go down 
AuthorMessage
kosovohp



Male
Number of posts : 339
Location : VN
Member of : VN
Registration date : 2010-10-01

Cable television Empty
PostSubject: Cable television   Cable television I_icon_minitimeThu Jan 13, 2011 12:55 pm

Cable television is a system of providing television to consumers via radio frequency signals transmitted to televisions through coaxial cables or Digital light pulses though fixed optical fibers located on the subscriber's property, much like the over-the-air method used in traditional television broadcasting (via radio waves) in which a television antenna is required. FM radio programming, high-speed Internet, telephony, and similar non-television services may also be provided. The major difference is the change of radio frequency signals used and optical connections to the subscriber property.
The abbreviation CATV is often used to mean "Cable TV". It originally stood for Community Antenna Television, from cable television's origins in 1948: in areas where over-the-air reception was limited by distance from transmitters or mountainous terrain, large "community antennas" were constructed, and cable was run from them to individual homes. The origins of cable broadcasting are even older as radio programming was distributed by cable in some European cities as far back as 1924.
It is most commonplace in North America, Europe, Australia and East Asia, though it is present in many other countries, mainly in South America and the Middle East. Cable TV has had little success in Africa, as it is not cost-effective to lay cables in sparsely populated areas. So-called "wireless cable" or microwave-based systems are used instead.

Rocailles
Wall Tapestry
Back to top Go down
lunamoonfang



Male
Number of posts : 144
Location : VietNam
Member of : vernlen.forumotion.com
Registration date : 2010-11-22

Cable television Empty
PostSubject: Re: Cable television   Cable television I_icon_minitimeThu Jan 13, 2011 1:59 pm

Cable television is a system of providing television to consumers via radio frequency signals transmitted to televisions through coaxial cables or Digital light pulses though fixed optical fibers located on the subscriber's property, much like the over-the-air method used in traditional television broadcasting (via radio waves) in which a television antenna is required. FM radio programming, high-speed Internet, telephony, and similar non-television services may also be provided. The major difference is the change of radio frequency signals used and optical connections to the subscriber property.

foot orthotics
best cities for boomers
Back to top Go down
 
Cable television
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Vernlen Table Tennis & Chess Club :: All About Chess ::   :: General-
Jump to: