Because of the local nature of the broadcasts, a fixed sign must be employed to tell drivers to tune to the appropriate ... avoid the need for manual tuning of the car radio by using a subsidiary FM receiver which automatically mutes the car radio, tunes ... The BBC CARFAX System. ... of low power medium frequency transmitting stations all operating on a single channel and sited about 40 to 70km apart toanbsp;...
|Title||:||Information Technology Applications in Transport|
|Author||:||Peter W. Bonsall, Michael G. H. Bell|
|Publisher||:||VSP - 1987-12-01|