CEEFAX 1 695 Thu 17 Sep 17:57/23 ************ ********************** * *** *** ** ******** * ***** * *** ************ ************************** 8/14 Digital Basics: 2. What is analogue? Analogue is the current broadcasting standard. It uses electrical signals (or radiowaves).
Terrestrial TV uses land-based transmitters to broadcast these signals which are then received by means of an aerial. Satellite beams the signals to a dish, while cable delivers much like a telephone line.
Digital technology makes better use of the available airwaves by squeezing a number of programmes into the same space currently occupying one.
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