| 摘要 |
PURPOSE:To shorten a transmission time, by sending broadcasting content data from a master station to plural slave stations with a simultaneous multiple address communication system. CONSTITUTION:The operator of a master station equipment 111 inputs broadcasting data by using a microphone 1. A control part 5, after sending a time difference instruction signal, sends the signal of the broadcasting content data as a wave via a radio equipment 2. Broadcast is performed at a group A slave station equipment 112 immediately based on the broadcasting content data, and the broadcasting content data is stored in a storage device 26 at a group B slave station equipment 113. And after the lapse of a prescribed time, the broadcasting content data stored in the storage device 26 is read out, and is sent to a power amplifier part 23. Since the master station equipment 111 performs simultaneous multiple address communication, communication can be performed in a short time, and it is possible to prevent inconvenience such as no transmission of data to a part of slave stations due to the fault of the master station equipment from being generated.
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