Analog television
From Free net encyclopedia
Analog television (or analogue television) encodes television picture and sound information as an analog signal, that is, by varying the amplitude and/or frequencies of the signal. All systems preceding digital television can be considered analog.
Analog transmission of television will cease to operate in the United States as of February 17, 2009, making all television sets without a digital tuner unable to receive television broadcasts without an external digital broadcast receiver.
Starting in 2008, the analogue service in the United Kingdom will cease to operate with the entire country have analogue switched off by 2012. The BBC have been encouraging viewers to get digital television by broadcasting digital television programs on their terrestrial channels. London will be hosting the Olympic Games in 2012 so all British coverage of the games will be in digital.
But a report has predicted that in 2007 Finland will become the first country to fully switch off its analogue signals.[1]
Common analog television systems: