Analog

In telecommunications, a shortened version of the term "analog transmission," which is a way of sending signals- voice, video or data - in which the transmitted signal is "analogous to," or like, the original signal. The traditional method of modulating radio signals so that they can carry information.

The simple way to transmit speech. The first networks for mobile phones were analog. Analog systems include AMPS, NMT and ETACS. (Ericsson)

A transmission method or way of sending voice, video and data using signals (such as electricity or sound waves) that are continuously variable rather than discreet units as in digital transmissions. In the context of wireless communications, analogue refers to transmission networks built in the 1980s and that use analogue technology rather than digital. See also Digital. (Nokia)

The technological basis for most current cellular systems. Primarily designed to transmit sound waves, as in conversations. (Motorola)