‘Communication’ Tag:


CB Radios Personal Communication Systems

Article by J.R. Ferrara The citizens' band radio (CB) is a communication system used for short-distance communication in selected channels within a single band, usually 27MHz. This system is, more or less, a personal communication system and does not require any license to operate. It's very popular in the United States.CB radio systems operate in ...

Radio – Still an Important Means of Communication in the 21st. Century

Article by Owen Jones Radio is one of the most extraordinary inventions of the Nineteenth Century. Although it was invented in 1879 by Marconi, the regular, large scale broadcasting of radio started later in the 1920's. Radio is indubitably one of the mothers of invention because it paved ways for further inventions in the domain ...