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Car radio communications commercial broadcast transmitter/receiver having first tuneable/selectable analogue transmitter/receiver and second channel digital transmitter conversion/receiver digital/analogue conversion.
Car radio communications commercial broadcast transmitter/receiver having first tuneable/selectable analogue transmitter/receiver and second channel digital transmitter conversion/receiver digital/analogue conversion.
The radio communication system transmits and receives analogue audio signals in one of several channels and an analogue selection channel. There is a second digital channel with a converter (12,13) transforming analogue signals to digital. there is a second reception channel converting digital signals to analogue, and a switch to switch between analogue and digital modes.
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