| 摘要 |
PURPOSE:To realize the repeating communication of real time at the time of emergency by receiving and delivering data for automatic repeating by adding an automatic repeater system using guard frequency to the radio equipments of a mobile and a repeater stations. CONSTITUTION:A function to transmit the data for the automatic repeating by the guard frequency is added to the mobile station, and in the repeater station, the setting of transmitting frequency data to other mobile stations or the setting of a transmission/reception switching signal, etc., is made capable of being controlled at real time on the basis of this data for the automatic repeating. Thus, since in the repeater station, the data for the automatic repeating is received and delivered by the action of a guard receiving part 7 and the guard frequency, manual operation need not be executed in the repeater station, and the repeating communication can be executed at real time even at the time of the emergency. |
