ANLEGGNING FOR RADIOTRAFIK MED EN RORLIG STATION FOR TRAFIK I ETT FORSORJNINGSOMRADET FOR EN ENDA FAST SENDAR-MOTTAGARSTATION OVERSTIGANDE OMRADE

摘要

Two-way radio communication system with several fixed stations serviced by a fixed dispatching center and with at least one mobile station. The fixed stations transmit at different frequencies and the mobile station at one frequency. The mobile station contains means for hunting the frequency with the best reception and thus receives only the fixed station having the best possible transmission conditions. All stations contain means ensuring that the dispatching center is connected only to the receiver of the fixed station, the transmitter of which is received by the mobile station.