| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that can prevent the occurrence of radio wave interference at a terminal station by radio waves of respective broadcast voices wirelessly transmitted at the same time zone from different master stations.SOLUTION: A district broadcast master station 21 gives notice of (transmits) transmission clock time of a district broadcast voice to a simultaneous report system master station 11, the simultaneous report system master station 11 determines whether there is overlap or not regarding the transmission time zones of district broadcast voices between district broadcast master stations 21 on the basis of the transmission clock time of the district broadcast voice notified by each district broadcast master station 21, and if overlap occurs, it adjusts the transmission clock time of the district broadcast voice so that the overlap will be avoided, and gives notice of (transmits) the adjusted transmission clock time to the district broadcast master station 21. The district broadcast master station 21 transmits the broadcast voice to a house receiver 26 triggered by arrival of the adjusted transmission clock time notified by the simultaneous report system master station 11. |
