| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio system for grasping situations in which information cannot be correctly communicated to residents in master facilities. <P>SOLUTION: The radio system includes: master station facilities 100 comprising an operation panel 2 and a base station 1; and slave station facilities 200 comprising outdoor speaker devices 4-1, 4-2 and household receivers 5-1, 5-2. A base station 1 has: a means (a control unit 12) for giving BER (Bit Error Rate) measurement instructions to the outdoor speaker devices 4-1, 4-2 when voice is being broadcasted; and a means (an answer-back control unit 121) for collecting results of BER measurement of the outdoor speaker devices 4-1, 4-2 by using an answer-back function. <P>COPYRIGHT: (C)2010,JPO&INPIT |
